The Sweden international will end a seven-season spell at Villa when his current contract expires in June and he makes the switch to the Italian giants on a three-year contract.
But that will not stop the 30-year-old from wanting to end on a high note with the midlands club, he said: "I have 14 cup finals to play - and I´m looking forward to them. I felt it was time for a new challenge but my total focus now is my performances for Villa."
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