It is reported Mancini stepped in after Balotelli went in too strongly on team-mate Scott Sinclair for the City boss's liking.

Balotelli is reported to have taken exception to Mancini's intervention, leading to the pair having to be pulled apart.

In the sequence of pictures, Mancini is seen striding towards Balotelli, pointing in an aggressive manner.

He is then seen to grab hold of Balotelli's orange bib in an apparent
act of fury before the young striker is dragged away by a member of
City's coaching staff.

A short time later, Balotelli is believed to have left the training ground at Carrington, on the outskirts of Manchester.

Balotelli's habit of attracting negative press has seen him frequently
become the subject of criticism, but Mancini has always been a firm ally
of the temperamental but talented striker.

Yet after this latest spat it seems increasingly likely the 21-year-old -
whose off-and-on girlfriend Raffaella Fico recently gave birth to a
girl - will leave City. Bookies responded to the pictures by immediately
slashing odds on Balotelli signing for AC Milan from 5/1 to 2/1.

The Italy international's form has been poor this season and he was
recently involved in a dispute over a fine he received from the club.

source: http://uk.eurosport.yahoo.com/news/premier-league-mancini-balotelli-training-ground-clash-133501326.html

From reddit: "they are Italian, for all you know, they were discussing tomorrow's dinner plans".

On a serious note though, its time for Balotelli to go, the attitude he shows is not commensurate with the talent he has. John Guidetti should be given a chance instead, great lad.

Hes a bad boy. The Prem doesn't want players like him.

he gets 90,000 pounds per week more or less,he dosent deserve it

He's sure to go to Italy soon. He does this stuff now but in 8 years he will regret it like hell

If I were Mancini, I would've gotten rid of him a long time ago!!!!! He's a waste of money, and his selfishness has cost man city a lot of goals and some games.