 Moreover, his career was briefly put in jeopardy when on 21 December 2006 it was revealed that he tested positive for prednisolone and prednisone after the 11th game of the 2006–07 Serie A season against AS Roma played on 11 November 2006.After confirmation of the test results in January 2007, he was suspended until 21 March 2007.As a result of his suspension, he was also excluded from the club's Champions League squad list and, therefore, was not able to participate in any playoff games leading up to Milan's victory over Liverpool in the final.