Full-time: Arsenal 2-1 Burnley
- Holders through to the fifth round of the FA Cup after an entertaining clash at the Emirates Stadium
- Calum Chambers gave the Gunners a first-half lead, but his opener was soon cancelled out by a powerful header from Sam Vokes
- Alexis Sanchez capped off a swift break to fire home the winner from close range after Alex Oxlade-Chamberlain's low cross
That is all from this blog, but stay with IBTimes UK and click here to follow live coverage West Ham's trip to Liverpool.
With Bournemouth coming from behind to win at Portsmouth, Shrewsbury's victory over Championship promotion chasers Sheffield Wednesday is the stand-out shock from those matches. Three goals in the last 11 minutes saw Peterborough claim a replay against West Brom, while Manchester City thrashed Aston Villa.
It was far from straightforward, but Arsenal's pursuit of a third straight FA Cup triumph remains alive as they book their place in round five.
Here are the rest of this afternoon's results:
Bury 1-3 Hull City
Portsmouth 1-2 AFC Bournemouth
Oxford United 0-3 Blackburn Rovers
Crystal Palace 1-0 Stoke City
Nottingham Forest 0-1 Watford
Shrewsbury Town 3-2 Sheffield Wednesday
Reading 4-0 Walsall
Aston Villa 0-4 Manchester City
Bolton Wanderers 1-2 Leeds United
West Bromwich Albion 2-2 Peterborough United
Arsenal 2-1 Burnley
Almost late drama as Walcott looks to add a third for Arsenal but is thwarted by a well-timed intervention from Heaton.
Arsenal are not merely content to sit on this one-goal lead. Oxlade-Chamberlain surges into the penalty area and feeds Walcott, whose cross is headed away by Mee.
Elneny collects the loose ball and shoots narrowly over.
A chance for Gray to level after he controls Barton's lofted through ball with his head. Bearing down on goal, the shot comes off his shin and rolls wide.
Four minutes of added time signalled by the fourth official.
It's not pretty from Burnley, but they burrow forward and Hennings tees up Kightly but the former Wolves and Stoke winger can only fire over. A deep cross towards the back post from Barton is then claimed by Ospina.
Frustration for Oxlade-Chamberlain as he loses composure at the vital moment and sends his shot high over the crossbar. Stephen Ward then receives treatment for a painful blow before Koscielny clears with Gray lurking.
Although the score remains at 2-1 with Burnley far from beaten, Wenger opts to take off Sanchez. The Chilean only recently returned from hamstring trouble and is replaced by Theo Walcott.
Dyche's final change is Michael Kightly for Boyd.
Another Burnley substitution sees Rouwen Hennings replace Vokes. The visitors win a corner that leads to Arfield lashing over under pressure from Giroud.
Fantastic agility from Heaton as he dives across goal to push a whipped free-kick from Sanchez around the post with two hands.
Koscielny then enters the referee's notebook for a handball that prevented Gray from breaking forward.
With 20 minutes plus stoppage time remaining, the lively Iwobi is withdrawn and replaced by Tomas Rosicky, who receives loud cheers from the home faithful as he makes his first Arsenal appearance since recovering from a serious knee problem sustained on international duty for the Czech Republic in May 2015.
Mikel Arteta is also on for Coquelin, who will have been pleased to get 70 minutes under his belt after recovering from injury.
Sanchez lofts the ball forward for Gibbs, who lays it back nicely for Elneny to curl harmlessly over the crossbar.
Barton replaces Jones for Burnley.
Coquelin wins the ball with a well-timed sliding challenge before Arfield is penalised for pulling down Sanchez. Yellow card.
The Gunners live dangerously as Gray finds his way out of the corner and picks out Boyd, who beats Chambers too easily and tries to find Vokes. Koscielny is alert to clear in the six-yard box.
Arsenal apply real pressure through the industrious Oxlade-Chamberlain. After a couple of corners, Elneny unleashes a powerful drive from distance that Heaton is equal to.
Almost a moment to forget for Mee as he plays a risky pass back to Heaton who clears under pressure from Iwobi. His goalkeeper certainly won't thank him for that.
So nearly 3-1 to the hosts as Keane's attempted headed clearance from a corner flies towards the back post and Koscielny's effort is cleared off the line by Arfield. Crucial intervention from the Scottish midfielder.
Arsenal have created preciously little during the early stages of this second half but they retake the lead as a crisp break ends with Oxlade-Chamberlain pulling a cross back from the byline towards Sanchez, who thunders beyond Heaton from close range.
Goal: Arsenal 2-1 Burnley (Alexis Sanchez)
Burnley scamper forward once again as Gray wins the flick-on and Arfield sets off in quick pursuit. Under pressure from Gabriel, he shoots straight at Ospina from a narrow angle before colliding with the goalkeeper when trying to claim the rebound.
Wenger is not amused with that challenge as the Colombian international stays down.
The first chance of the second 45 falls to Dyche's side as a free-kick from David Jones is headed towards the back post by Mee but Iwobi makes a timely intervention to deny Gray.