Chelsea defender Branislav Ivanovic says they must not underestimate Champions League opponents Maribor.
The Blues thumped the Slovenian champions 6-0 at Stamford Bridge a fortnight ago as an Eden hazard double and strikes from Loic Remy, John Terry, Didier Drogba and an own goal completed a routine victory for the Group G leaders.
Ivanovic said: "At the moment we are doing very well but it's just the beginning, we know we can't relax. We can still improve.
"'The motivation of the Maribor players will be massive. The fact we won 6-0 in London makes it harder for us tomorrow.
"It's important for us to finish the group well but tomorrow will be a difficult game. It will 100 per cent definitely be a different game. We will approach it like in London.
"In the first game we scored at the right moment and the second goal as well, so we had a great game in the beginning and we controlled that, but Maribor had a really good part of the game when they played well.
"There are hard games on different pitches and we must learn from the past."
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