Attempt saved. Shkodran Mustafi header from the centre of the box is saved.
90+1'
Granit Xhaka is shown the yellow card for a bad foul.
90'
Attempt blocked. John Fleck left footed shot from the centre of the box is blocked.
87'
Martinelli's cross is deflected behind but United clear the resulting corner.
86'
John Fleck whips a free kick into the box but Saka heads away.
85'
Foul by David Luiz
83'
Goal! Arsenal 1, Sheffield United 1. John Fleck left footed shot from the left side of the box.
81'
Attempt saved. Oliver McBurnie header from the centre of the box is saved.
78'
Attempt blocked. Nicolas Pépé left footed shot from the right side of the box is blocked.
76'
Basham is replaced by Mo Besic.
76'
Attempt missed. Eddie Nketiah right footed shot from the right side of the box.
74'
Arsenal. Eddie Nketiah replaces Alexandre Lacazette.
73'
Attempt missed. Alexandre Lacazette right footed shot from outside the box from a direct free kick.
72'
Foul by Jack O'Connell
70'
Attempt missed. Chris Basham right footed shot from the right side of the box misses to the left.
69'
Nicolas Pepe drives into the box and is brought down by Jack O’Connell. Fans cry for a VAR check but nothing comes of the check.
67'
Callum Robinson is on for John Lundstram.
64'
Attempt missed. John Lundstram right footed shot from the centre of the box following a corner.
61'
Luiz almost loses the ball just outside the Arsenal box and fires it back to Leno but he deals with it well and finds a teammate higher up the pitch.
59'
Pepe is sent away down the right and is isolated against O'Connell. He feints and turns to work half a yard before lifting a cross into the middle for Lacazette, but it's cut out just before it reaches the Frenchman.
57'
Foul by Shkodran Mustafi
56'
Attempt blocked. Oliver McBurnie header from very close range is blocked.
56'
Billy Sharp replaces Lys Mousset.
51'
Baldock now does pick up a yellow card
51'
Saka races down the left touchline until Baldock has now option but to bring him down.
47'
Very smooth. McBurnie tries to press Leno but he calmly drags the ball in the opposite direction.
46'
Back under way for the second half!
H-T'
Arsenal 1-0 Sheffield United
45'
Goal! Arsenal 1, Sheffield United 0.
Gabriel Martinelli right footed shot from very close range.
42'
Basham with a very important interception as Arsenal attempt a through ball for Lacazette.
38'
Foul by Lys Mousset.
Lucas Torreira wins a free kick in the defensive half.
35'
Jack O'Connell tries his luck from distance but his shot is well wide.
32'
Attempt saved. Lucas Torreira right footed shot from outside the box is saved in the centre of the goal.
31'
Arsenal are starting to attempt more intricate combination play and mount some pressure on Sheffield United, but Torreira then tries a dipping effort from distance that Henderson deals with comfortably.
29'
Norwood latches onto a loose ball on the edge of the box and swings a boot at it, but he sends it high over the bar.
27'
Offside, Arsenal. Shkodran Mustafi tries a through ball, but Gabriel Martinelli is caught offside.
25'
Corner, Arsenal. Conceded by Oliver Norwood.
21'
Arsenal put together a fine move into the Sheffield United box and Martinelli arrives in the middle to try and sweep home at the near post, but he can't quite find the corner and fires wide!
17'
George Baldock wins a free kick on the right wing.
14'
Lacazette with a pass in behind Stevens, Pepe chases in behind and stands up the cross towards Martinelli who scuffs his effort wide.
9'
Deep corner from Fleck is headed into the mix by Jack O'Connell. It falls kindly for Mousset who steers his header over. The flag had already been raised for offside.
8'
Maitland-Niles' pass out from the back is cut out and Fleck then lofts the ball into the area for Mousset to head at goal, but he can only steer his effort over the bar!
4'
Yellow card to Oliver Norwood
2'
John Egan who heads into the stand with Nicolas Pepe in hot pursuit. Attacking throw for Arsenal which is cleared by the Blades. 0-0.
1'
Arsenal vs Sheffield United underway at Emirates Stadium.
'
Arsenal Starting XI To Face Sheffield United: Leno, Maitland-Niles, Luiz, Mustafi, Saka, Torreira, Xhaka, Pepe, Ozil, Martinelli, Lacazette
ARSENAL - Lineup
Gabriel Martinelli right footed shot from very close range.
Lucas Torreira wins a free kick in the defensive half.
Substitute: Bellerin, Ceballos, Holding, Martinez, Willock, Guendouzi, Nketiah
Sheffield United - Lineup