Arsenal

• In each of the other two seasons that Arsenal have faced a team from Sweden, they have gone on to reach a European final – and lose it on penalties after a goalless draw.
• Arsenal are unbeaten at home in eight UEFA Cup and UEFA Europa League matches (W6 D2), their last defeat coming against Borussia Mönchengladbach at their old Highbury stadium in the 1996/97 first round (2-3).
• Arsenal have prolonged their European campaign into the spring for the 19th successive year – all under Arsène Wenger.
• Arsenal have prevailed in all 13 UEFA competition ties in which they won the first leg away from home, the most recent instance being in the 2013/14 UEFA Champions League play-offs, when they beat Fenerbahçe 3-0 in Istanbul before winning the return 2-0 in north London.

Ostersund

• Östersund have a perfectly balanced record of two wins, two draws and two defeats in their six European encounters outside Sweden. They posted one win, one draw and one defeat on their travels in the group stage.
• Östersund are the first Swedish club to qualify for the knockout phase of the UEFA Europa League. Four others – AIK, Elfsborg, Helsingborg and Malmö – have competed in the group stage but made no further progress. Indeed, the three victories Östersund posted in this season's group stage matched the number managed by those four clubs put together.
• Östersund coach Potter played for Birmingham, Wycombe, Stoke, Southampton, West Brom, Northampton, Reading, York, Boston, Shrewsbury and Macclesfield; he was also capped once by England Under-21s.