ROME, July 29 (Xinhua) -- AC Milan's Brazilian star Ronaldinho has been ruled of the weekend's four-team Emirates Cup in London for muscle strain in his left leg, the Italian side announced on Thursday.

The 30-year-old former Barcelona winger was hurt in training and will rest for seven days.

AC Milan join hosts Arsenal, Lyon and Celtic in the Emirates Cup pre-season event, which takes place on Saturday and Sunday.