Milan have announced that Kevin-Prince Boateng picked up a thigh injury during the 4-0 win over Arsenal.
The Ghanaian made his comeback from a long lay-off in that Champions League game, scoring the opener with a sensational volley.
However, he limped off during the second half and it seems as if the injury is more serious than previously thought.
“A.C. Milan confirm that after the Arsenal game Kevin-Prince Boateng was diagnosed with a muscular problem in his left thigh,” read a statement.
“Over the next few days the prognosis will be established following more medical tests.”
Meanwhile, Alberto Aquilani and Mathieu Flamini resumed training with the full squad today.
Alessandro Nesta, Alexandre Pato, Boateng, Clarence Seedorf and Philippe Mexes miss tomorrow’s Serie A match with Cesena.