Description:STORY : Manchester City manager Roberto Mancini was involved in a training ground bust-up with volatile forward Mario Balotelli on Thursday (January 3) the Manchester Evening News reported. Italian striker Balotelli provoked Mancini when he mistimed a tackle on midfielder Scott Sinclair and the pair tussled as coaches tried to separate them, the paper said on its website . Balotelli, 22, left the training session hastily before driving away from the Carrington complex.(0:26)