The season is over for Milan forward, Samuel Chukwueze, who sustained a left thigh strain during the 5-1 win over Cagliari.
The Nigeria international picked up the injury just before half time and did not come back out for the restart at San Siro on Saturday.
Tests have now confirmed there is a Grade I lesion to the femoral bicep in the left thigh.
It is the kind of injury that requires several weeks out of action, so Chukwueze will miss the two remaining Milan matches this season against Torino and Salernitana.
The right-sided attacking winger contributed three goals and three assists in 33 competitive games for the Rossoneri this season.