Boss Avram Grant admits Chelsea face a tough task to overcome Olympiakos in the Champions League last 16 after a 0-0 draw in the first leg in Greece.
Grant cut an unusually agitated figure on the sidelines in Greece
The Blues have not lost at home for 59 games but Grant says the return leg in two weeks is not a forgone conclusion.
"They are a good team, very organised. 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 said.
Grant left John Terry and Frank Lampard out of his starting line-up on Tuesday and though his side were rarely troubled, they failed to pose much of a threat themselves.
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," said.
"We played with a strong team today and with a strong bench and we will do it again and again in the future."
He admitted Chelsea's lack of goal scoring chances in the match had been disapppointing.
"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."
Midfielder Joe Cole added: "It was tough and I'm sure it wasn't pretty to watch.
"It was a very tactical game and we'll have to improve at the Bridge to get the job done that's for sure.
"They are a good side and gave us a good run for our money.
"We look solid, everyone's doing their job tactically, but we need to start scoring goals. We want to get flowing again."