In the first leg Chelsea once again proved the world and European champions’ nemesis, as Barca have now failed to beat the Blues in their last six meetings and that includes three score draws at the Nou Camp.
Cech said: “We’ve done well in the past there and need to reproduce the same kind of performance that we did and like we have before.
“It will be really important to score an away goal as well but we seem always to score there and, hopefully, we can replicate that.”
Chelsea will need even more defensive discipline on Tuesday on a pitch much bigger than their own. Cech added:
“This performance was all about the focus and concentration, to stay disciplined all the time and not give them space, even though you could run for three minutes and not see the ball.
“We had to fight from the first to the last minute. We’ve done the maximum we could do against such a great side.
“We’ve had some good results against them in the past and used that experience again.
“We made it really tight, but will have to play the same way in the second leg.”