Milan boss Massimiliano Allegri says Ronaldinho must work hard to win his place back in the starting XI.
The Brazil international has lost his place in the side and was spotted in a nightclub last week, much to Allegri's disappointment.
Speaking ahead of tomorrow night's clash with Auxerre in the Champions League, Allegri said: "Ronaldinho is working. He is doing very well. He also came on with desire on Saturday.
"No one likes being out of the team, but he has to work to get his place back."
Looking ahead to Auxerre, Allegri said: "Everyone knows the importance of this game. I believe that until we win in France and Ajax lose at home, qualification will be open until the very end.
"Auxerre are going through a very good spell of form. Their recent results are good and they always manage to express themselves well at home.
"We have to play a great game to come away with a positive result."