Alexandre Pato voluntarily turned up for training on Tuesday even though Milan had been given the day off by Massimiliano Allegri.
The 21-year-old Brazil international spent an hour and a half working on his game in an effort to convince the coaching staff to start him more regularly.
Pato has been on the bench 10 times this season despite scoring a goal every 96 minutes in Serie A.
He got the winner against Chievo at the weekend and is trying to develop a better understanding with Zlatan Ibrahimovic.
Betting on Serie A? Bet365 are offering a 100% deposit bonus, up to £200 - find out more