Chelsea defender Alex admits he has fears of collapsing tonight in Barcelona just as Bayern Munich did in their Champions League quarterfinal.

He said: "The key to the whole tie is what happens in the first leg. We do not want what happened to Bayern to happen to us because those four goals were decisive in the end.

"If we can get a good result in Barcelona, we will have an advantage because the second game is usually decisive and we will be at home."