Juventus defender Andrea Barzagli is a doubt for the Champions League final.
Juve meet Barcelona in the final next month.
Barzagli was forced from the field during victory over Napoli on Saturday.
"The medical examination showed that the defender has suffered a first grade tear of the rectus femoris muscle in his right thigh," the club announced on its official website.
"Barzagli will now begin treatment and both his condition and availability for June's Champions League final are to be monitored on a day-to-day basis."