- 1-1 after first leg in London, Vrsaljko and Simeone sent off
- Wenger overseeing 250th UEFA club game as coach
- Hosts have won last four UEL home games, none conceded
- Arsenal without a win in last six games in Spain (D2 L4)
- Winners will be nominal away side in Lyon final
Aubameyang cup-tied
Ospina, Iwobi and Mkhitaryan doubts
Elneny could return