Arsenal:
Due to the 'Gunners' playing in the League Cup final against Manchester City on Sunday, there will be a few surprise inclusions as head coach Arsene Wenger tries to rest some key players ahead of the silverware battle, especially given their commandable lead against their Swedish opposition.
Aaron Ramsey (groin), Mesut Ozil (illness) and Alexandre Lacazette (knee) will all miss the second leg while Wenger has already confirmed that David Ospina will continue in goal alongside Henrikh Mkhitaryan - who is cup tied against City - and Danny Welbeck.
Ostersunds:
For Graham Potter, defensive midfielder Smajl Suljevic (knee) and left winger Johan Bertilsson (wound) are unavailable, but right winger Hosam Aiesh has recovered from his problem to be in contention with Saman Ghoddos and Brwa Nouri for a position up front.
Arsenal manager Arsene Wenger:
"A big part is done but to be professional is to finish the job. We have enough maturity and love for the game we want to play. That's why I think it is important to win the game tomorrow. If we go out and think we will have stroll we could have a bad surprise."
Did you know?
No Swedish side has won an away European match in England since Östers IF beat Tottenham in the 1995 Intertoto Cup (P6 W0 D2 L4 since).
Form:
Possible lineups:
Arsenal: Ospina; Monreal, Chambers, Mustafi, Bellerin; Maitland-Niles, Elneny, Iwobi, Mkhitaryan; Nelson, Welbeck.
Ostersunds: Keita; Pettersson, Widgren, Papagiannopoulos, Mukiipi; Nouri, Hopcutt, Tekie, Sema, Aiesh; Ghoddos.