Thanks for joining me tonight and joining in the debate for what was actually a pretty dull game of attack v defence football with one major talking point...
- Gabriel Jesus goal ruled out for offside
- Fellani straight red for headbutt
- Aguero hits base of United post
- Herrera heads wastefully wide
- Get involved: #bbcfootball
City have only lost one of their 16 home league games this season, but United (9) have drawn more home games than them in the top flight this season (7).
The most shots United have faced in a Premier League game this season have been against City - 18 at Old Trafford and 19 tonight.
Manchester City manager Pep Guardiola is "satisfied" with his team's performance in the goalless draw.
City have now failed to score in four of their last five Manchester derbies in all competitions.
Not much has really changed in the battle for the Champions League places. City and United pick up a point each, having played another game each now.
They remain fourth and fifth respectively.
There have only been seven longer unbeaten runs within a single top-flight season than Manchester United's 24, with the record being Arsenal’s unbeaten season of 2003-04 (38 games).
Alan, Seaton: In defence of Fellaini, if he had heatbutted Aguero, he would not have been able to continue. Aguero has been very clever. Whatever way you look at it it's cheating, but no-one has the guts to call it. Football is embarrassing itself.
Chris the Red: Fellaini thinks he was sent off for because of who he is. I agree. He's an idiot...
And the last bit of Jose Mourinho's BBC Sport interview...
"Why is Paul Pogba injured – because he played two hours against Anderlecht and two days later had to play at Burnley. We have unlucky injuries and big injuries in knees but also injuries that are a consequence of fatigue.
"We will fight until the end – today we lost two more players – Timothy Fosu-Mensah had an important injury in the last action of the game and Fellani is suspended.
"We are going down in terms of the number of players. It is very difficult for us but the character is amazing and I’m very proud of the boys."
More from United boss Jose Mourinho: "Marouane Fellaini is frustrated. He says that with another player it would probably not be a red card.
"He says that Sergio Aguero was intelligent the way he reacted but the only thing I know is that we had to play almost 15 minutes with a tired team.
"But we got the best character out of the players and what can be an important point at the end."
Manchester United boss Jose Mourinho has been talking to BBC Sport after the game.
"Of course with so many problems, with so many injuries, with so many matches there is incredible fatigue.
"The boys gave absolutely everything. The first half was what we wanted – we controlled totally and quite easily defensively and had the game under control.
"In the second half we could not have the beginnings of a counter attack – we were losing the ball too early."
This was United’s lowest amount of possession in a Premier League game since Opta started recording that data in 2003-04. They had 30.8% of the ball.
Manchester City boss Pep Guardiola speaking to BBC Sport: "We cannot forget which team we were against tonight. They created two clear chances and I am satisfied. I know how difficult it is to play against Manchester United.
"Every game until the last game now will be a final.
"We have the talent but it's not easy with so many players behind the ball.
"We all have tough games coming up now and we know it's not an option to not win these games. Every game is important."
Oumesh Sauba: the good thing about Fellaini seeing red is he won't be missed for the two or three or even more games
Luke: LVG sat wondering how on earth he was sacked. Half the budget and got better results. JM running out of excuses for mediocrity
Less Wiggin: Masterclass from Man Utd. Top two goal scorers out. Three central defenders injured. great performance.
This is United's touch map for the second half. As you'll see, they barely got near City's penalty box at all.
United boss Jose Mourinho to Sky Sports on Marouane Fellaini's red card for headbutting Sergio Aguero: "I didn't watch the Fellaini incident on TV but I spoke with Fellaini.
"He thinks it was a red card because he is Fellaini. I spoke to Martin [Atkinson, referee] - he thinks it was a red card.
"I can guess it's a bit of a red card and a bit of a very smart, very experienced Argentinian player."
United boss Jose Mourinho, speaking to Sky Sports: "We wanted to do more in terms of attacking and to explore more of the counter attack. In the first half we had good control but the second became more difficult.
"We had to make a decision to play for the draw and had to fight hard to take a point.
"They started strong, pushed hard and I promised not to speak about players who weren't playing so I won't but we just didn't have the quality of players in midfield - we were missing quality there.
"In the first half, we were always dangerous and there were points where our movement could have been the start of something important but we lost too many balls."
Our chief football writer Phil McNulty is discussing tonight's game on Facebook right now. Check it out.
You might remember we told you England boss Gareth Southgate was at the rugby league and not at the Etihad today.
He probably made the right call.
Lowly Huddersfield Giants produced a shock 31-12 Super League victory away to Leeds Rhinos, who missed the chance to go top of the table.
Marcus Rashford only got 28 touches of the ball anyway.
We will bring you what Jose Mourinho and Pep Guardiola have said soon.
United boss Mourinho claims he didn't see Marouane Fellaini's red card incident but says the Belgian thinks he was sent off because of who is he.
City's Guardiola says he has "no regrets" and expected United to play the way they did.
Sergio Aguero attempted nine shots. The last player to attempt more in a game against the Red Devils was Cristiano Ronaldo (11) for Real Madrid in March 2013.
That equals the most shots that Aguero has attempted in a Premier League game without scoring – level with his appearance against West Brom in March 2015.
Manchester City captain Vincent Kompany, speaking to Sky Sports: "We got a point - it's not so bad but we never felt like the game was difficult or they were a threat.
"It's happened a lot this season - good games but just not the result. Rashford and Martial have got so much ability and such a bright future ahead.
"They are lightning quick and with a bit more experience can cause a lot more trouble."
Seven of the eight red cards given in this Premier League fixture have been for Manchester United players.
From a neutral's point of view, we've got to thank Marouane Fellaini for giving us a talking point really.
That is his third red card in the Premier League and second for United. It feels like more.
Manchester United captain Michael Carrick, speaking to Sky Sports: "It’s a point gained for us.
"We thought we could catch City on the break and we did have a couple of chances but overall I thought we did well except at the end when there was a bit of excitement.
"It makes things more difficult when you go down to 10 men."
United have equalled their record for the longest unbeaten run within a single top-flight season (24 games). Plenty of draws in among there though.
Sort of reminds me of Huddersfield's 43-game unbeaten run in the league that left them in pretty much the same place in the League One table.
Stoke City midfielder on BBC Radio 5 live's weekend preview show
Fellaini is a great player but has shown stupidity there, for sure. He is just lucky it didn't cost Manchester United anything tonight.
I'm genuinely looking forward to hearing what Jose Mourinho had to say about Marouane Fellaini's red card.
Or when he's asked about the fact they barely even tried to score a goal.
Ex-Spurs and England winger for 5 live Sport
United came with a game plan and it worked but City, let's be honest, have been quite disappointing tonight.
Overall Mourinho will be pleased with the way they have defended.
It's all over, City somehow have not won this derby. But it will be mostly remembered for Marouane Fellaini's 19 seconds of lunacy.
The corner goes past everyone and that's that.
Gabriel Jesus wins a corner. This is surely it now.
One last chance?
It's a chance for a City winner but Sergio Aguero can't make the right connection to a long cross and it loops up into the air.
Richard Clayton: So frustrating from Fellaini. He's played well for us recently but always seems to take 2 steps forward, one step back.
Kenny Kong: Unfortunately Fellaini has just shown why so many was surprised he was named captain few games back, what a silly sending off.
Paul Mulligan: I'm probably on my own here but that headbutt didn't look that bad to me. More stupidity from Fellaini and clever from Aguero.
Jesus Navas crosses from the right and fellow Jesus, Gabriel, pokes it wide at the near post. And now he's hobbling.
This is ending 0-0.
Say what you want about Marouane Fellaini but he makes life more interesting.
Ashley Young replaces the hobbling Marcus Rashford. Eat the seconds up, is what Jose Mourinho will be thinking.
Gabriel Jesus thinks he has just scored the winner in the Manchester derby on his return from injury but he was offside when he tapped home Sergio Aguero's cross. He had started his celebrations but had to cut them short.
Six minutes added on.