The Gunners welcome Greece's No. 1 team to the Emirates as Arsene Wenger aims to secure their first win of the UEFA Champions League group stage.
The Gunners have endured a poor start to their 2011-12 season, suffering three defeats, including an 8-2 humiliation by Manchester United. However, Wenger's young guns returned to their winning ways with a 3-0 defeat of Bolton on the weekend, and enter the match as clear favourites.
Olympiacos have never won in England, and few are giving Ernesto Valverde's men a chance of securing victory in North London. However, it is set to be an exciting, attacking encounter between two talented sides.
As always, Bleacher Report will keep readers up to date during the match.