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'It's got to be perfect'

ROBERTO di Matteo has asked his players to deliver perfection against Barcelona or watch another Champions League adventure end in bitter disappointment.

"It's fair to say we need two perfect games," Di Matteo said. "But they don't like to play us. The results show that. The way we play is maybe a bit more difficult for them."

However, Barca boss Pep Guardiola admits that he is struggling to find a plan which will cope with Chelsea.

"Everyone wants to beat Barcelona. But I am struggling to see how we are going to hurt them and score goals," he said.