Zenit St Petersburg coach Sergei Semak says they're taking seriously their Champions League clash with Chelsea.

No matter the result, Zenit will finish third in their group.

Semak insists: "Playing in the Champions League is already an incredible motivation.

"There was not a single Zenit match, even when we had already guaranteed the championship a few rounds before the finish, we played at full strength.

"We always try to play our maximum. It may not always work out, but everyone has such a desire."