Ronaldinho [ Images ] has promised to work hard at new club AC Milan [ Images ] after leaving Barcelona [ Images ] under a cloud.

The Brazilian forward, who suffered form and fitness problems at the Nou Camp last term, will land in Milan later on Wednesday and undergo a medical before signing a deal until June 2011. He is then expected to be presented to the media.

• Ronaldinho from hero to zero at the Nou Camp

His transfer has taken three months of bargaining and will initially cost 21 million euros ($33 million), much less than English Premier League side Manchester City [ Images ] were reported to have bid.

"I am sorry for the wait but the facts show that I have always wanted Milan," Ronaldinho told Gazzetta dello Sport.

"This is not the moment to talk about Barcelona because I want to enjoy this new chapter of my life. I will only say that at Milan I promise commitment, not only on my technique."

Ronaldinho caused a row at Barcelona even in his last few days at the club when he was told he would not be able to represent Brazil [ Images ] at the Olympics [ Images ].

Milan have blocked compatriot Kaka [ Images ] from attending but media reports on Wednesday said part of Ronaldinho's deal with the Rossoneri was to allow him to go to Beijing [ Images ] next month.

Beating off English side City to sign the 28-year-old is being seen as a coup in Italy [ Images ] given that Serie A has slipped behind the Spanish and English leagues in recent seasons.

Money is also tighter than usual at the San Siro this season with Carlo Ancelotti's [ Images ] side only in the UEFA [ Images ] Cup, so no further signings are expected. Arsenal's [ Images ] Mathieu Flamini is the other major arrival.