Still up? Then consider my hat doffed. I, though, am in need of sleep so it is time to knock our coverage on the head. Cheerio!
- Murillo sweeps Colombia into deserved lead
- Naymar and Bacca see red after FT
- Brazil, Colombia and Venezuela on 3 pts
- Colombia's third win against Brazil
If that was indeed Neymar, which it looks increasingly likely that it was, then it is almost like the World Cup all over again, although this time it was completely his own doing after letting his frustrations gets the better of him.
The red card means he miss Brazil's next three games, a huge blow to their Copa America hopes.
A couple of red cards were flashed by the referee after the final whistle after that on-pitch fracas involving several players. Neymar looks to be the recipient of one as he went off down the tunnel, with Colombia's Carlos Bacca also seeing red.
The win also gets Colombia up and running in Group C, which is wide open with three sides on three points. It's also Dunga's first defeat in his second spell as Brazil boss.
That's it! Full-time and Colombia boss Jose Pekerman punches the air in delight at masterminding's his side's first win against Brazil in 24 years.
Lots of pushing and shoving between the two sets of players at the final whistle, though. Tempers bubbling over.
It is getting a bit niggly as the clock ticks down. Colombia happy to eat up time, Brazil desperate to get the chance for one last attack.
Four minutes of stoppage time is announced and four minutes for Colombia to hold on for a famous win against Brazil. They've not beaten them since 1991, when Brazil legend Ronaldo was nothing more than a promising youngster. His playing career has been and gone in that time, is Colombia's long wait about to end?
It is almost game, set and match to Colombia as James Rodriguez scurries along the edge of the area before shooting low and hard towards the far post. Just wide.
Oh it has just not been Neymar's night.
He peels away from his marker to chase a dangerous-looking ball into the box, but his first touch lets him down and the ball drifts out of play. Better control and that could have been the equaliser and Neymar knows it, slapping his thigh in frustration.
Filipe Luis has been pushed into midfield as Brazil swell their numbers to support attacks. They are pressing, but struggling to find that final ball as Philippe Coutinho sends a cross-shot wide of goal.
A change in midfield for Colombia for the final 10 minutes as Mejia replaces a tiring Edwin Valencia.
Changes for both sides as we enter the closing stages, midfielder Diego Tardelli on for Elias for Brazil, while striker Carlos Bacca replaces Teo Gutierrez for Colombia.
Victor Ibarbo replaced Radamel Falcao as the focal point of Colombia's attacks, but it is clear the big man has been told to get back in defence when Brazil attack, which they are doing at the moment. Can Colombia keep them out in these final 15 minutes?
This half has not matched the quality of football on show in the first half, with both sides going increasingly direct and looking most dangerous from set pieces. Colombia have half a chance when a free-kick from halfway is nodded on by Juan Cuadrado for Teo Gutierrez, whose shot is deflected behind for a corner.
Radamel Falcao pays the price for a poor display as he is replaced by Victor Ibarbo for Colombia with just over 20 minutes left. Brazil also make a change as Douglas Costa replaces Willian.
Jeison Murillo is down on the floor injured, a bit of claret coming from his nose. It looks like he took a bit of a knock when challenging Neymar for a long ball into the box. Looks like he is good to continue.
Jose Pekerman looks to be about to employ my go-to tactic on a certain football computer game, send on the pacey Victor Ibarbo when the momentum is with the other team. Not sure he will stick the striker on the wing like I do, though...
Speaking of shockers, Radamel Falcao is having one at the moment. Anonymous so far, with his first contribution of the second half being to give away a free-kick.
Oh my! What a miss! Jeison Murillo almost sees his good work from scoring earlier undone with a shocker of a backpass, leaving David Ospina way short. Neymar nips in, but his shot is charged down only for the ball to break to Roberto Firmino. He has an open goal in front of him but somehow smashes over. Shocking.
It has been much better from Brazil so far in this half, but they are almost caught out when their defence backs off Juan Cuadrado who, after a couple of step overs, lets fly with a rasping effort that flies just wide. Jefferson was beaten in the Brazil goal.
Another Brazil attack as Colombia give Neymar far too much space on the right side of the area but, luckily for them, he uncharacteristically slices his shot well wide. Should have done better.
Good work from Roberto Firmino as he wriggles away from two defenders before trying to send Neymar clear, but the ball is behind the Barcelona forward.
Colombia took an age to get back out on the pitch, leaving the Brazil players to linger about in the cold.
Dunga has decided a half-time change is needed and Liverpool midfielder Philippe Countinho is the man he fancies to instigate a change in fortunes, replacing Fred.
We're back under way.
- Copyright: Reuters
It is not going to plan for Brazil's men's team at the the moment, but the women's team has won again at the Women's World Cup, beating Costa Rica 1-0.
They won all three of their group games and face Australia in the last 16.
Neymar's yellow card just before the break will rule him out of Brazil's final group game against Venezuela. Very bad news for the Brazilians, with Neymar at the heart of their best moves in that first half.
- Copyright: BBC
How does Group C look after that goal then? Well, as it stands, Venezuela, Brazil and Colombia are all on three points, with Venezuela and Peru still to play their second game. Plenty to play for.
Advantage Colombia at the break, and it is a deserved lead too. It could have been worse for Brazil, as Neymar escapes a second booking right on the stroke of half-time as he punches the ball away in frustration.
NEYMAA....no! It looked like Brazil had snatched an equaliser before the break as Neymar powered a header at goal from Dani Alves's cross. David Ospina somehow keeps it out and then clutches a follow up effort on the line.
In the end it wouldn't have counted had it gone in anyway, as replays show the ball had hit Neymar's hand after the initial header, and he gets a booking. Bit harsh.
Sbusiso: As it stands won't be a surprise if Colombia steal it, They have been the better team n showing a lot of hunger going forward.
Brazil have been in scintillating form since their World Cup exit. Genuinely scintillating. They've won 11 games in succession under Dunga but they've got some work to do to extend that record tonight with Colombia well on top. Brazil do have an opportunity as Dani Alves scampers forward, but his cross sails over the head of Neymar. They'll need better than that.
Well, you can't say this has not been coming! Colombia have another free-kick, this time on the right side of the area and Juan Cuadrado whips the ball in. Brazil fail to clear and defender Jeison Murillo takes advantage to sweep home.
...James Rodriguez doesn't fancy the shot from 30 yards and instead bends the ball into the box for onrushing Colombia players, but Brazil clear.
Teo Gutierrez is sent tumbling by Fernandinho. Yellow card for the Brazil defender and a free-kick in a promising position for Colombia. James Rodriguez fancies it...
Aston Villa's Carlos Sanchez is not famous for his goalscoring exploits. In fact, he is not known for them at all. He's making his 57th Colombia appearance and looking for his first goal, but he is not far off with a long-ranger that deflects off the back of Miranda and goes just wide.
I tell you what Noel, Colombia are looking much the better side at the moment, attacking collectively and with confidence. They need to capitalise while they have the momentum, though, if they are to end a 24-year wait for a win against Brazil.
Noel Fitzpatrick: Colombia playing 442, Brazil playing Neymar + 10!!
Juan Cuadrado gets the ball midway inside the Brazil half with no-one around him. No Brazil player comes to close him down either so Cuadrado fancies a pop at goal. It is a bouncing effort, but fizzes wide of the upright. No danger for Jefferson in the Brazil goal.
Yellow card and it shown to Pablo Armero. Confused look on the Colombia defender's face as he protests his innocence. It is indeed an error on the referee's part as he swiftly changes his mind to flash the card at Teo Gutierrez instead for a lunging challenge on Dani Alves.
- Copyright: Getty Images
James Rodriguez is looking dangerous. His pace is forcing Brazil into some frantic defending at times as Miranda flings his head at another razor-sharp cross from the Real Madrid forward to put the ball behind for a corner.
Neymar skips a lunging challenge from a defender before feeding a pass to the edge of the area for Willian, who can't quite get there and Colombia thump the ball high up the pitch for Teo Guttierez, who cleverly chests the ball down for Radamel Falcao but his drilled effort is wide.
On the pitch, the tempo has slowed down a bit after a pretty fast start. Still no real chances for either side yet, though.
- Copyright: Reuters
As I mentioned earlier, this fixture represents a reunion between Colombia defender Juan Zuniga and Brazil forward Neymar. It was Zuniga's challenge on Neymar that caused the injury that ruled the latter out of the 2014 World Cup, but there's no bad blood between the two tonight, as the above picture shows.
It is good, fast-paced football from both sides in the early stages but it is Colombia who are looking the most threatening going forward.
A Brazil attack breaks down and Colombia break on the counter through Jaun Cuadrado. He feeds the ball to James Rodriguez, who in turn finds Teo Gutierrez but his ball into the box is behind Radamel Falcao.
Neymar is straight into the thick of things, jinking his way down the left. His cross is blocked but he soon regains possession outside the D. He feeds the ball to Willian, whose low drive is blocked.
It is a good start by Brazil, but Colombia swiftly embark on their first attack, James Rodriguez racing away down the left but his cross is far too deep and the chance is gone.
Brazil can all but secure a place in the last eight with a win, defeat for Colombia will put them on the cusp of an early exit. This should be a cracker!
It is the Brazilians to get us under way.
- Copyright: Reuters
Both teams link arms and the stadium falls quiet as a minute's silence takes place to remember two-time Brazilian World Cup-winning midfielder Zito, who died recently.
Definitely 1-0 to Colombia in the anthem singing there. A ripple of applause in the stands suggests there is a larger Colombia following at the Estadio Monumental, too.
Some solid anthem singing by the Colombian players and a few of them are evidently happy with their efforts as they thump their chests at the end to the sound of a huge roar around the stadium. Now Brazil.
Noel Fitzpatrick: More hope than expectation in Colombia, and removing Bacca and leaving in Falcao has not gone down well here!
Sbusiso: Neymar is the main man in that Brazilian team l believe in him,not to forget the little magician he is yet to get started.
As expected, those vuvuzelas I mentioned earlier are being tooted vociferously at a packed Estadio Monumental. It looks as though it is absolutely freezing in Santiago, too, with Colombia boss Jose Pekerman wearing a hefty coat, collar up and scarf wrapped round his neck.
Some jovial music blasts out over the speakers as the two sets of players walk out on to the pitch. National anthems to come and away we go.
- Copyright: AP
Chile midfielder Arturo Vidal is the top scorer at this year's Copa America with three goals but he has been in the headlines for all the wrong reasons this week.
The 28-year-old crashed his Ferrari in Santiago late on Tuesday, suffering minor bruising. He has had his driving licence suspended, but will retain his place in Chile's team.
"I let everyone down," a tearful Vidal said as he was released.
El Roy: 3-1 Brazil David Luiz first goal
Maxime Selmi Duprant: Draw 2-2 Falcao & Cuadrado
Might be waiting a while for your four goals, El Roy, David Luiz starts on the bench.
- Copyright: @ca2015
He is playing it low key tonight though. Not even a pair of massive over-ear headphones as he rocks up at Estadio Monumental. I thought they were standard issue.
- Copyright: Getty Images
Chelsea fans will have particular interest in how Colombia fare at the Copa America.
Their winger Juan Cuadrado starts tonight alongside Radamel Falcao, who is understood to be on the verge of joining Jose Mourinho's side.
Nothing has officially been confirmed, but Cuadrado perhaps let the cat out of the bag in Colombia's pre-match news conference, saying: "It's important to have a team-mate like him at the club, but now I'm concentrating on the Copa America and will talk about it later."
Ah, the teams are finally in.
David Luiz is on the bench while Neymar starts as expected for Brazil and will line-up against defender Juan Zuniga, who is in the Colombia XI. Radamel Falcao leads the attack for the Colombians, with James Rodriguez and Chelsea's Jaun Cuadrado in support.
Brazil XI: Jefferson, Filipe Luis, Miranda, Thiago Silva, Dani Alves, Elias, Willian, Roberto Firmino, Fred, Fernandinho, Neymar.
Colombia XI: Ospina, Armero, Murillo, Zapata, Zuniga, Valencia, Sanchez, James, Cuadrado, Teo, Falcao,
- Copyright: EPA
It was not all good news for Argentina, however.
Manager Gerardo Martino has been given a one-game ban after he was sent off in the win against Uruguay and the former Barcelona boss will sit in the stands for Argentina's final Group B game against Jamaica.
A bigger concern, though, is that Sergio Aguero injured his shoulder in the win. It's unlikely to be anything for Manchester City fans to worry about, but he is a doubt for that Jamaica game.
- Copyright: Instagram
The Argentina lads have been relaxing today after picking up their first win of the 2015 Copa America against Uruguay yesterday.
Manchester City's Sergio Aguero scored the game's only goal as Argentina moved on to four points in Group B after letting slip a two-goal lead in their opener against Paraguay to draw 2-2.
"It was a physical duel, a fight, and we showed we can also play that way," Lionel Messi said of the Uruguay win. "We do not look for it, but we know how to play this way too."
Johnny Magrinho: I can't fathom any outcome other than Neymar dancing his Brazilian friends to victory tonight & in the tournament. He's magical!
- Copyright: Getty Images
Juan Zuniga was vilified in Brazil after causing Neymar's injury in the World Cup, but Brazil coach Dunga is in forgiving mood.
"The way I see it, it was a harsh but normal duel," he says.
"Zuniga lost his coordination. He couldn't stop, so he ended up fouling him. I always think no player goes into a tackle with a malicious thought; to try to take an opponent out of the match."
- Copyright: Twitter
I've not seen an official team-sheet yet, but it looks like defender Juan Zuniga starts for Colombia judging by the above picture, meaning he will renew acquaintances with Neymar - the player he injured and ultimately ruled out of the 2014 World Cup.
Right, before I'm in danger of running out of things to waffle on about, and more of a test to see if you are indeed awake than anything else, it's time to call upon you input.
Which star you think will shine brightest at the tournament?
Will Lionel Messi step up to the plate and lead Argentina to victory? Neymar to help Brazil to make up for their World Cup disappointment? Will Colombia and Real Madrid forward James Rodriguez star? Or maybe Arsenal's Chile star Alexis Sanchez?
Could Radamel Falcao give Chelsea fans reason to be optimistic, or is there an unfamiliar name who could steal the show? Let us know your thoughts via #bbcfootball or text in on 81111.
- Copyright: Getty Images
The Estadio Monumental in Santiago, Chile is the venue for this game, and the stands are filling up nicely with kick-off just a little under one hour away.
If you are unable to watch the game, then take solace in the fact you won't have to endure the below instruments of horror - the vuvuzela, spotted in the hands of some spectators making their way to the stadium.
Still, no half-and-half scarves on show, at least.Copyright: EPA
- Copyright: Getty Images
Yep, Brazil's players certainly made James Rodriguez know he was in for a battle at last year's World Cup, with the Colombia forward on the receiving end of a number of bruising challenges.
Revenge on the mind then, surely?
"It's not revenge, it's one more match, and I think it will be a good one," says Rodriguez. "Neymar is playing incredibly well but they're going to have to be good to beat Colombia."
Best not have a quick check of the history books then James. Brazil have lost just twice in 27 encounters between the two...
- Copyright: Getty Images
James Rodriguez. While it was a World Cup to forget for Brazil last year, it was undoubtedly one to remember for the Colombia forward.
The 23-year-old stole the show at the tournament, scoring six goals to win the Golden Boot and helping to earn him a move to Real Madrid.
He failed to shine in Colombia's opening game at the Copa America but, given the rough treatment he received against Brazil at the World Cup, he'll no doubt be keen to put on a show this time.
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Hello! Not ready for bed yet? Good, because we've got the potential for come cracking Copa America action ahead of us. Fancy a bit of Brazil versus Colombia?
The Brazilians may well fancy their chances of picking up three points, but they were far from convincing in their opening game win against Peru, when they came from behind to win 2-1.
They are also up against a Colombia side who will want revenge for their quarter-final defeat to Brazil at last year's World Cup and will also be desperate for three points after a shock defeat to Venezuela in their first game.
Oh and they've got this chap to call upon too...Copyright: Getty Images
- Copyright: Getty Images
This was the moment that broke Brazilian hearts. Neymar, in tears and clutching his back, suffered a fractured vertebrae after a challenge by Colombia's Juan Zuniga that would rule him out of last year's World Cup.
It sent a nation almost into mourning, with even the president of Brazil saying her heart had been "injured" when she saw the look of pain in Neymar's face.Copyright: Getty Images
The pain was to get worse, Brazil suffered a humiliating 7-1 defeat at the hands of Germany to complete a World Cup to forget for the host nation.
Now they face Colombia again. Reinvigorated and boasting a fully fit, perhaps even deadlier, Neymar.Copyright: Getty Images
The World Cup was Brazil's lowest ebb, but will the Copa America be the tournament that sees them shine once again?