The Brazilian, who returned to the Italian club from Real Madrid on a free transfer on deadline day, could start against Torino away from home in Serie A on Saturday.
"It's been a good week and we are working well," BBC Sport quotes him as saying.
"I've met both Balotelli and El Shaarawy and they seem good guys. We can all play together. There's a lot of respect among the players here."
Milan are currently sixth in the league table with three points from two matches.