90' The whistle has gone to end the second half. The match finishes 2 - 0.
90' Olivier Giroud (Arsenal) wins the ball in the air but heads wide.
90' Davy Propper of Brighton & Hove Albion FC gets in a strike, but is off target.
90' 3 minutes will be added to the second half.
88' Arsenal's Theo Walcott has run offside.
87' Corner awarded to Brighton & Hove Albion FC.
84' Glenn Murray (Brighton & Hove Albion FC) is first to the ball but his header is off-target.
83' Mohamed Elneny is replacing Granit Xhaka for Arsenal at Emirates Stadium.
77' Chris Hughton (Brighton & Hove Albion FC) is making a third substitution, with Glenn Murray replacing Isaiah Brown.
76' The away team have replaced Jose Izquierdo with Anthony Knockaert. This is the second substitution made today by Chris Hughton.
76' Arsenal's Alexis Sanchez gets his shot away but it misses the target.
73' Corner awarded to Arsenal.
73' Arsenal have been awarded a corner by Kevin Friend.
72' Arsene Wenger is making the team's second substitution at Emirates Stadium with Theo Walcott replacing Alex Iwobi.
72' Ezequiel Matias Schelotto is on a sub for Solly March for Brighton & Hove Albion FC.
71' Olivier Giroud is replacing Alexandre Lacazette for the home team.
67' Arsenal push forward at Emirates Stadium and Alexandre Lacazette gets in a strike. This is blocked, however, by a determined Brighton & Hove Albion FC defence.
66' Arsenal are coming forward and Alexis Sanchez gets in a strike, it misses the target, however.
64' Arsenal's Alexandre Lacazette is whistled for offside at Emirates Stadium.
62' Arsenal push forward through Alexis Sanchez, whose finish on goal is saved.
62' Sead Kolasinac (Arsenal) goes for goal but the shot is blocked by an alert defence.
62' Arsenal have been awarded a corner by Kevin Friend.
61' Alexis Sanchez of Arsenal smashes in a shot on target. The keeper saves, though.
59' Arsenal drive upfield and Alexis Sanchez gets in a shot. The strike is blocked by a Brighton & Hove Albion FC defender.
56' Goal! Arsenal extend their lead to 2 - 0 through Alex Iwobi.
56' That's a fine assist from Alexis Sanchez.
55' In London Brighton & Hove Albion FC drive forward through Lewis Dunk. His shot is on target but it's saved.
52' Aaron Ramsey of Arsenal gets in a strike, but is off target.
52' Corner awarded to Arsenal.
49' Alexandre Lacazette (Arsenal) is given an opening but the shot is blocked by a defender.
46' The second-half has just kicked-off.
45' The first-half has come to a close in London.
45' At Emirates Stadium the fourth official shows that 1 minutes will be added to the first half.
45' Brighton & Hove Albion FC's Davy Propper misses with an attempt on goal.
42' Aaron Ramsey of Arsenal smashes in a shot on target. The keeper saves, though.
41' Corner awarded to Brighton & Hove Albion FC.
39' Shane Duffy (Brighton & Hove Albion FC) has been booked and must now be careful not to get a second yellow card.
35' Jose Izquierdo (Brighton & Hove Albion FC) goes for goal but the shot is blocked by an alert defence.
34' Isaiah Brown of Brighton & Hove Albion FC is pulled up for offside.
34' Arsenal's Alexandre Lacazette is on target but unsuccessful.
33' Arsenal have been awarded a corner by Kevin Friend.
32' Important block from the Brighton & Hove Albion FC defence as Granit Xhaka fires in a strike for Arsenal.
29' Brighton & Hove Albion FC's Jose Izquierdo breaks free at Emirates Stadium. But the strike goes wide of the post.
28' Arsenal push forward through Alex Iwobi, whose finish on goal is saved.
27' Brighton & Hove Albion FC have been awarded a corner by Kevin Friend.
26' Corner awarded to Brighton & Hove Albion FC.
23' Solly March (Brighton & Hove Albion FC) fires in a shot – and hits the post!
23' Kevin Friend blows against Brighton & Hove Albion FC's Shane Duffy for offside.
20' Brighton & Hove Albion FC have been awarded a corner by Kevin Friend.
18' Corner awarded to Arsenal.
17' Pascal Gross (Brighton & Hove Albion FC) has received a yellow card from Kevin Friend.
17' In London, Shkodran Mustafi of Arsenal is presented with a shooting opportunity. But the strike is blocked by the covering defence.
16' Goal! Nacho Monreal gives Arsenal a 1 - 0 lead in London.
16' Hector Bellerin (Arsenal) gets in a strike but the shot is blocked by a defender.
13' Arsenal's Alex Iwobi gets in a shot on goal at Emirates Stadium. But the effort is unsuccessful.
7' Arsenal drive forward and Alexis Sanchez gets in a shot. Without netting, however.
7' Arsenal's Sead Kolasinac gets in a shot but it is blocked by a Brighton & Hove Albion FC defender.
5' Brighton & Hove Albion FC surge into the attack at Emirates Stadium but Isaiah Brown’s header is off-target.
2' Arsenal are pushing forward but Alexis Sanchez's finish is wide of the goal.
2' So close for Arsenal as Alexandre Lacazette's shot comes back off the post.
1' The first-half is just kicking off.
59378 spectators are watching the match in London.
The official line-ups for today's match are out.