Kevin-Prince Boateng has not been playing for Barcelona recently due to a problem with his knee.
The Ghana international caused quite a stir in the January transfer window, signing for the Catalan side as they looked to provide cover for Luis Suarez, who has various problems with his knees.
However, despite arriving fit – Boateng is now said to be struggling also – with a knee injury.
The former AC Milan man played 63 minutes against Sevilla in the first leg of the Copa del Rey tie two weeks back, but has since been an unused substitute.
The 31-year-old is not expected to continue at Barca past the summer but he was expected to play a larger part during his loan spell.
Spanish media report that Boateng has felt discomfort for sometime in his knees and that his participation in games will depend on weekly checks with the club’s doctors.
Before arriving in Spain, Boateng scored four goals in 13 games for Italian Serie A side Sassuolo.
Barca, who were held by Athletic Bilbao at the weekend, have a rare midweek break before they return to league action against Real Valladolid.
After the draw, Barca sit six points ahead of Real Madrid, who beat Atletico Madrid 3-1 in the Madrid derby at the weekend.