The Borussia Dortmund ace has been linked with the Blues but Mourinho was quick to play down that speculation as he suggests that the Pole's much talked about switch to Bayern Munich has already been sealed.
"I think his story is a book that was written a long time ago," the Portuguese told Sky Sport Germany .
"Everybody knows how the story ends.
"It surprised me that he was even associated with us, it's that obvious."
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