Manchester United's injury list grew on Thursday night when David De Gea was withdrawn from their Europa League clash with FC Midtjylland.
The Spanish goalkeeper injured his knee in the warm-up and had to be replaced in the starting XI by Sergio Romero.
Regarding the injury sustained by De Gea, manager Louis van Gaal was unaware the extent of the damage but said the 25-year-old would be sent for a scan on Friday.
"It happened in the warm up," he said. "We have to wait and see for the scan tomorrow, then maybe we can say more but it was a big surprise."
Below is the full list of Man Utd's injured players and their scheduled return dates:
David De Gea - knee - unknown
Cameron Borthwick-Jackson - illness - February 22
Wayne Rooney - knee - April 2
Matteo Darmian - dislocated shoulder - unknown
Marouane Fellaini - hamstring - unknown
Adnan Januzaj - hamstring - February 28
Guillermo Varela - knock - February 28
Phil Jones - knock - February 28
Ashley Young - groin/pelvis - unknown
Bastian Schweinsteiger - knee - unknown
Marcos Rojo - dislocated shoulder - March 6
Antonio Valencia - ankle/foot - March 6
Luke Shaw - broken leg - May