Milan striker Robinho is injured again and will miss this weekend's Serie A match at Lazio.
Robinho, who returned only at the end of September following a lengthy layoff, has hurt a muscle in his right thigh.
Milan says on Tuesday the Brazilian will undergo further tests in 10 days.
Robinho will miss Saturday's match at Lazio as well as Wednesday's Champions League tie at Malaga.
However, Milan is hopeful that fellow forward Alexandre Pato could make his first appearance of the season against Lazio.
Pato has been out since injuring his thigh in August but has been back in training for nearly two weeks.
Milan is 11th in the Serie A, with just two wins from seven matches.