Chelsea boss Roberto di Matteo was full of praise for Gary Cahill victory over Barcelona.

Didier Drogba scored the only goal of the game as Chelsea won the first-leg of their Champions League semifinal 1-0.

"It was a bit of a baptism for Gary," he said.

"He has not played much in the Champions League and it was a difficult game. But I am very pleased that he played so well, as did the whole back four."

Chelsea were forced to survive a few scares but Di Matteo said that was only to be expected under the circumstances.

"Sometimes it feels like they have 20 players," he said.

"We watched Barcelona against AC Milan and Real Madrid, top European clubs, and they did exactly the same to them.

"They have a unique style of play, with quality players. They are the only team in the world who can do that."