90' It's 1 - 2 as the referee blows for full-time.
90' Dennis Widgren for Ostersunds FK has been booked by Ivan Kruzliak and receives a first yellow card.
90' Arsene Wenger (Arsenal) is making a third change, with Reiss Nelson replacing the possibly injured Alex Iwobi.
90' Play has been resumed at Emirates Stadium.
90' The match at Emirates Stadium has been interrupted briefly for a check on Alex Iwobi, who is down injured.
90' 3 minutes of injury time will be added to the second half.
90' Danny Welbeck of Arsenal smashes in a shot on target. The keeper saves, though.
88' Henrikh Mkhitaryan (Arsenal) has received a first yellow card.
87' Arsenal's Alex Iwobi breaks free at Emirates Stadium. But the strike goes wide of the post.
87' Arsenal have been awarded a corner by Ivan Kruzliak.
86' Important block from the Ostersunds FK defence as Joe Willock fires in a strike for Arsenal.
84' Ostersunds FK's Dino Islamovic gets his shot away but it misses the target.
81' The away team replace Jamie Hopcutt with Frank Arhin.
80' Corner awarded to Arsenal.
80' Calum Chambers's header is off-target for Arsenal.
79' Curtis Edwards (Ostersunds FK) has been booked and must now be careful not to get a second yellow card.
77' Corner awarded to Ostersunds FK.
77' In London Ostersunds FK attack through Tesfaldet Tekie. The finish is off target, however.
76' Arsenal make their second substitution with Joe Willock replacing Jack Wilshere.
73' The away team have replaced Ronald Mukiibi with Dino Islamovic. This is the second substitution made today by Graham Potter.
71' Ostersunds FK have been awarded a corner by Ivan Kruzliak.
70' Ostersunds FK's Jamie Hopcutt gets in a shot but it is blocked by a Arsenal defender.
68' Arsenal's Danny Welbeck goes close with his head but his effort is blocked.
62' Arsenal's Mohamed Elneny gets in a shot on goal at Emirates Stadium. But the effort is unsuccessful.
54' Corner awarded to Ostersunds FK.
53' Tesfaldet Tekie (Ostersunds FK) goes for goal but the shot is blocked by an alert defence.
52' Tesfaldet Tekie is on a sub for Hosam Aiesh for Ostersunds FK.
49' Danny Welbeck for Arsenal drives towards goal at Emirates Stadium. But the finish is unsuccessful.
48' Arsenal have been awarded a corner by Ivan Kruzliak.
47' Hector Bellerin instrumental with a fine assist.
47' Goal! Sead Kolasinac pulls one back to make it 1 - 2.
46' Ivan Kruzliak has blown to start the second-half.
46' Granit Xhaka is replacing Ainsley Maitland-Niles for the home team.
45' The first half has been concluded at Emirates Stadium.
45' Ivan Kruzliak will wait an extra 2 minutes before blowing the whistle to end the first half.
44' Ostersunds FK push forward through Saman Ghoddos, whose finish on goal is saved.
43' Ainsley Maitland-Niles (Arsenal) has received a yellow card from Ivan Kruzliak.
42' Arsenal are pushing forward but Jack Wilshere's finish is wide of the goal.
40' Ostersunds FK’s Tom Pettersson is on his feet again at Emirates Stadium.
39' The match is underway again.
38' Tom Pettersson is writhing in pain and play has been suspended for a few moments.
37' Corner awarded to Arsenal.
35' Arsenal push forward at Emirates Stadium and Danny Welbeck gets in a great header. The attempt is cleared by the Ostersunds FK defence.
32' Arsenal have been awarded a corner by Ivan Kruzliak.
30' Ostersunds FK are coming forward and Curtis Edwards gets in a strike, it misses the target, however.
24' Great finish from Ken Sema to give Ostersunds FK a 2 - 0 lead.
24' That's a fine assist from Saman Ghoddos.
22' Saman Ghoddos with an assist there.
22' Goal! The away team take a 1 - 0 lead through Hosam Aiesh.
21' Arsenal's Rob Holding is back in action after a slight knock.
21' Corner awarded to Arsenal.
21' Arsenal drive upfield and Jack Wilshere gets in a shot. The strike is blocked by a Ostersunds FK defender.
20' Play is underway once more.
19' Ostersunds FK advance rapidly upfield but Ivan Kruzliak blows for offside.
19' Rob Holding is down and play has been interrupted for a few moments.
18' Ostersunds FK drive forward and Ken Sema gets in a shot. Without netting, however.
18' Ostersunds FK are whistled for offside.
16' Arsenal push upfield but Ivan Kruzliak quickly pulls them for offside.
15' Arsenal have been awarded a corner by Ivan Kruzliak.
14' Alex Iwobi of Arsenal gets in a strike, but is off target.
6' Arsenal have been awarded a corner by Ivan Kruzliak.
2' Corner awarded to Ostersunds FK.
1' The match has started at Emirates Stadium.
Arsene Wenger and Graham Potter have now revealed their starting line-ups.
There are 58405 people in the crowd for today's match.