Tevez has made two substitute appearances totalling 40 minutes since returning to the side earlier in the month following his infamous touchline row with Mancini during a Champions League defeat against Bayern Munich in Germany in September.
But the Argentina striker may start against Sunderland after scoring in a 71 minute run-out for the reserves at Morecambe on Wednesday.
The former Manchester United player, who has not started a league game since September, capped an energetic display by finding the net with an ambitious chip from the edge of the box.
Toure says Tevez is desperate to make amends for his behaviour earlier in the season by ensuring City pip his former club to the title.
"Carlos is our player - everyone can make mistakes, but he is really a good man," said Ivory Coast international Toure.
"When you meet him, he is always good fun and a nice guy, even if people may have a different image of him.
"It was unbelievable when Carlos came back and the fans gave him big applause, and tried to support him when he got the ball.
"He knew when he came back to the club that he had made a very big mistake, but now everything is over and he is focused on winning the Premier League.
"He wants to help the team, and the club, and do as much as possible to say sorry to the fans.
"I think he will be an important player for us, as he wants to prove to everyone he is a top player. I am sure he will be fantastic for the rest of the season.
"In my first year here he was my captain, and was always focused, always wanting to win - he was unbelievable.
"When people love you, you want to give them something back. The fans come to enjoy football and see our best players, like Carlos, and we have to deliver."
-AAP
