Man City boss Mancini unhappy with Dzeko after touchline strop
Dzeko shook his head at Mancini as he was replaced by Nigel de Jong 10 minutes into the second half.
"He was disappointed but he played a bad game," said Mancini.
"I wanted to keep the score down and not concede a third goal.
"It is the last time any player at this club does that."