Manager Avram Grant said Chelsea face a tough task if they are to overcome Olympiakos in the Champions League last 16 after a 0-0 draw in the first leg in Greece.
Unbeaten at home for 59 games, Chelsea will be slight favourites to progress to the quarter-finals, but Grant says he is taking nothing for granted.
“They are a good team, very organised,” said Grant. They play more or less the same away and it’s not easy to play against them.
“We expect a tough game. They played the group games at Real Madrid, Werder Bremen and Lazio well.
Grant left John Terry and Frank Lampard out of his starting line-up on Tuesday, but he denied he had taken a gamble with his team selection.
“In football I never gamble. We put a strong team out and when you have a big squad we get questions about the players that didn’t play,” he said.
“We played with a strong team today and with a strong bench and we will do it again and again in the future.
“We didn’t create a lot of chances so it’s disappointing even though we had the ball most of the time,” Grant said.
“We’re a team that always likes to win so if we’re not winning we’re not happy. The performance could have been better.”
Olympiakos coach Takis Lemonis was content with the result.
“The atmosphere was great and tactically we played well,” he said. “There is nothing to change in our mental approach.
“When we go to London for the second leg on March 5 we will try our best to win. I don’t know if we will qualify but we will try.”