FILE - This is a  Wednesday Dec. 21, 2011 file photo of Manchester City's manager Roberto Mancini, right, as he  issues instructions to Italian stiker Mario Balotelli during the team's 3-0 win over Stoke in their English Premier League soccer match at The Etihad Stadium, Manchester, England.  Mario Balotelli's volatile relationship with Manchester City manager Roberto Mancini appeared to escalate Thursday Jan. 3, 2013, when they had an angry altercation during training. News reports said the incident occurred after a tackle by Balotelli on a teammate. (AP Photo/Jon Super, File)
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