Italian League leader , AC Milan , announced on Thursday that the Brazilian striker Alexandre Pato will be out for two weeks because of an injury of torn muscle in his right thigh .
This is the thirteen times of injury for Pato since January 2010 . He has missed 18 out of 36 games for team so far in all competitions in this season . Pato will miss the first leg of the Champions League matches against Arsenal on the next Tuesday in London .
He has scored only 4 goals in this season for his team .
