The Argentine striker reacted angrily to being substituted in the final minute and exchanged words with Mancini before James Milner intervened.
ROUND 1: Tevez and Mancini erupt at Eastlands as captain and manager clash during win over NewcastleROUND 2: Balotelli involved in training ground scrap with Man City team-mate Boateng Enlarge Bust up: Carlos Tevez has words with Manchester City manager Roberto Mancini after being substituted
Afterwards Mancini attempted to play down the latest incident of ill-discipline.
'I am happy about this. I would like all players to be like Carlos and want to stay on the pitch.' said the Italian.
'I needed a player like Mario on the pitch as he is taller than Carlos. We must continue to score when Carlos doesn't play.'
Enlarge I'm the boss: Mancini lays down the law to Tevez
The confrontation followed Friday's bust-up between Mario Balotelli and team-mate Jerome Boateng in training.
Balotelli, 20, reacted angrily to a tackle from behind by the 22-year-old Germany defender, who retaliated by grabbing the striker by the throat in front of Mancini and the rest of the squad.
The two players appeared to make up afterwards but Mancini had words with his £23million signing from Inter Milan as he tried to calm him down.
Off you go: Mancini points Tevez towards the dressing rooms
It's not the first clash between Mancini and Tevez. The pair had a blazing row during half-time of the club's 2-1 win over Newcastle.
It is understood that the mood turned sour when Mancini entered the dressing room after his players and heard Tevez saying something he didn't like.
City's Italian manager then made a comment of his own and Tevez jumped up from his seat to confront him.
Words were exchanged and other members of the team and backroom staff had to intervene.
City scrappers! Bad boy Balotelli in training ground bust-up with BoatengLescott fears he may have to leave Man City to save his England careerTevez and Mancini erupt at Eastlands as pair clash during Newcastle winMANCHESTER CITY FC