Chelsea boss Frank Lampard says there can't be any letting up against Champions League opponents Rennes.
If results go their way, Chelsea will be into the knockout phase tonight with two group games to spare.
Lampard said, "We are in a decent position, but the minute we drop levels or don't prepare right it will change. Rennes are a very accomplished team, we found that out at the Bridge, and I have a lot of respect for them.
"People are saying if we get the right result the group will be done in terms of qualification, but if we get the wrong result we make it a difficult couple of games in the group because we go to Seville next. We have to respect this game, and we have to keep focusing on ourselves to keep that form going."