Brazilian star Ronaldo could quit soccer at the end of the season because of injuries, Calcio Italia magazine reported on Tuesday. El Fenomeno has been struggling with a series of injuries since the beginning of the season and it seems his future with AC Milan is jeopardized. The 31-year old marksman, who featured in only three games this season, will be out of contract next summer and he could put an end to his career or move to Brazilian side Flamengo. There are few chances he could extend his stay with the Rossoneri especially with the rising performance of Alberto Paloschi and the perfect start of Alexandre Pato.