In the fifth round of the UEFA Champions League, Leverkusen defeated Manchester City 2-0 away from home. After the game, pharmaceutical company goalkeeper Flecken was elected the best player of the match.

In this game, Flecken started the game and contributed 9 saves, the most in the game, including 5 shot saves in the penalty area and 1 high ball interception. In addition, he also contributed 1 clearance.