That's it for another week from the Ulster Football Championship text commentary bunker. There is no official word yet on the replay date but next Saturday evening appears the likely time. We'll definitely be back in harness for the Tyrone v Cavan semi-final replay at Clones next Sunday. We'll have this evening's match report up on the BBC Sport NI website as soon as possible. It's been a busy day of sport so we're sure you'll understand the slight delay. Best wishes and thanks for watching.
- Conor McManus levels in sixth minute of injury-time
- Donegal's Martin McElhinney sent off in second half
- Odhran MacNiallais goal helps 14-men move two up
- Monaghan still two down as game enters injury-time
- Minor result: Donegal 3-15 2-12 Monaghan
Donegal boss Rory Gallagher is left disappointed as his team are caught in injury-time and makes clear his unhappiness at the six minutes of injury that the officials played.
"I felt we were slightly the better side for most of the contest. We're disappointed to have been caught in injury-time after there was so much of it."
Former Donegal forward
Both teams gave the ball away badly on a number of occasions in the closing stages and conceded fouls which will infuriate the managers.
So both Ulster football semi-finals require replays. Terrific contest here. These sides likely to face off at Breffni next Saturday night we're hearing.
Anthony Thompson's foul gifts another equalising chance to McManus and the Monaghan man makes no mistake in the final minute of injury-time. Gonna be a replay, I think.
Monaghan's veteran sub Dick Clerkin carelessly gives the ball away in the middle of the field and after Donegal work the ball downfield, Christy Toye fists over the bar. Two minutes left.
McManus points a free to cut Donegal's lead to a point. There are going to be six minutes of added time. Plenty of time for Monaghan to get on terms. Sure enough, McManus points another long-range free within a minute. Great courage from the Monaghan man.
Monaghan keeper Rory Beggan misses a long-range chance to cut Donegal's lead to the minimum. Exciting stuff here.
Being reduced to 14 players has galvanised Donegal. Eoin McHugh doubles their lead as they seem to have the legs on Monaghan at this stage.
Former Donegal forward
It will be a shame if there is a loser in this contest. Both teams deserve another go.
From the resultant free, McBrearty restores Donegal's lead.
Monaghan defender Colin Walshe is black carded for hauling down Ryan McHugh.
Conor McCarthy levels the contest again from a free but it's his final action as he is replaced.
But incredibly Donegal are ahead within a minute of McElhinney's premature departure as Odhran MacNiallais fires into the net after being given acres of space.
Donegal are down to 14 men as Martin McElhinney picks up a black card as he appears to take out Drew Wylie off the ball. McElhinney was yellow carded earlier and in gaelic football, yellow and black equals red.
McBrearty has his head in his hands as he blasts over the bar on the turn after good work by Ryan McHugh and Martin McElhinney. It was another goal chance.
McBrearty claims his curling free from 35 yards has gone between the posts but the umpires don't agree. Donegal still three behind.
Make that three as O'Connell slots his second straight point after another flowing Monaghan move.
Michael Murphy hits his third wide of the second half as he is off-target from a long-range free. Monaghan still two ahead.
There is two points between the teams for the first time since the 13th minute as Karl O'Connell fires over a great point after a sweeping move.
Monaghan regain the lead as McManus swings over a great point from play.
Ryan McAnespie then looks through on goal for Monaghan but he takes his eye off the ball and allows Donegal keeper Mark Anthony McGinley to pick up possession.
Debutant Ciaran Gillespie has a glorious goal chance but Rory Beggan spreads himself to make a great save. Probably the wrong man in the right place.
Murphy fires over his third point as he continues to edge his battle with Vinny Corey but Owen Duffy restores parity within a minute as he skins Karl Lacey.
A 25-minute cup of tea for the teams at Breffni but we're finally back under way.
Former Donegal forward
It's anybody's game at this stage. Donegal had a few question marks going into this contest. They are answering them so far. Monaghan probably should be one or two ahead. They have created a couple of half goal chances.
The sides go in level at half-time. A bit of push and shove and jersey-pulling going on as the players make their way off the pitch. Nothing too serious but you get the feeling that it won't take too much to get matters to "kick off" before this game in over. All to play for in the second half.
McManus levels in first-half injury-time from a free after Ryan McAnespie is bundled over.
McBrearty levels as he applies the finish after Donegal move the ball quickly out of their own defence and the Kilcar puts the 2012 All-Ireland champions ahead a minute later from a straightforward free.
McManus slots another Monaghan free. Moments later, he is a little fortunate to only be handed a yellow card as he thumps into the back of a blindsided Frank McGlynn. Paddy McBrearty punishes the foul by stroking over the long-range free.
Big hits are a plenty at Breffni. One big collision between Murphy and Drew Wylie has left the Monaghan man on the receiving end. That doesn't happen too often.
A bit of backchat from Paddy McGrath makes Conor McManus' free-taking task easier as he slots from 30 metres after the ball is brought forward by Joe McQuillan.
The Donegal forward is cautioned for a neck high tackle on Owen Duffy.
Conor McCarthy swings over a fine equaliser for Monaghan from distance.
BBC Radio Ulster GAA pundit
It looks like it's going to be another low-scoring game between these two teams. You would wonder why Conor McManus is playing so deep for Monaghan? That's a strange decision.
Murphy adds a free to re-establish a two-point lead for Donegal but Conor McManus judges the wind perfectly to slot a long-range free, via an upright.
Michael Murphy doubles Donegal's lead as he picks up the scraps after a high ball into the Monaghan defence but Shane Carey replies almost immediately for Monaghan.
Referee Joe McQuillan is giving the defenders the benefit of the doubt early on. A few hefty enough challenges at either end have gone unpunished so far.
We're underway on time at Breffni Park and fit-again Karl Lacey shows his eagerness to impress as he kicks a point after only 13 seconds.
Fintan Kelly and Owen Duffy replace Dessie Mone and Dermot Malone. Donegal to play as selected - we're told. Another change has seen Joe McQuillan assume the refereeing duties after Down whistler Ciaran Branagan is ruled out by injury.