Manchester United playmaker Angel di Maria has reportedly suffered another injury to his pelvis.
The club's record signing from Real Madrid originally aggravated the area over the Christmas period, which kept him sidelined for three matches.
He recovered to feature in nine games since then, including last night's 3-1 FA Cup victory away at League One side Preston North End.
However, the Argentine picked up a similar complaint during this morning's training session, according to the Daily Mail.
While the extent of the damage is not known, Di Maria may now be doubtful to feature for the Red Devils against Swansea City at the Liberty Stadium on Saturday afternoon.