Boateng's time at City is remembered for an infamous training ground bust-up with controversial striker Mario Balotelli.
He claims too much was made of that incident and is good friends with Balotelli, who has impressed this term and scored 10 goals.
Boateng said: "It was nothing serious. That sort of thing happens at every club.
"It was a short tussle. We shook hands afterwards.
"I really like him. I hear a lot of stories about him but I know him better and see it a bit differently."