Postmatch, Mancini was highly critical of his player, but is determined to see the former Inter player improve mentally.
Mancini told reporters: “No. I am frustrated because sometimes I think it is not possible that a player with his class and his technique can play a game like this."
“I think he is young and I hope for him he can improve very quickly for his future.
“A player like Mario in the Premier League should score one or two goals every game."
The 21-year-old scored twice on Saturday as City were forced to come back from 3-1 down in the second-half, both Balotelli and Aleksandar Kolarov netting late on to rescue a point.
However, the fiery Italian launched into an argument with the Serbian full back as the players planned a free kick close to the Black Cats’ area.The spat with Kolarov certainly did not please Mancini, with the 47-year-old questioning Balotelli’s professionalism.
“This was a bad moment,” Mancini said.
“I think a professional player can't do what they did in that moment, when we were losing 3-1.”
City has now dropped five points behind title rivals Manchester United, after the Red Devils left it late at Blackburn to eventually win 2-0, but Mancini is adamant that everything in their power will be done to ensure the fight stays alive.
“We should be strong, I believe always,” said the former Inter boss.
“The message is always the same - we will do everything to win this title.”
When asked what he said to the players after Saturday's game, Mancini said: “Nothing because they were so tired.
“I said only, 'believe in yourselves' because we have seven games - 21 points. I think with 92 points we will win the title.”