New Delhi, Dec. 22 -- Manchester United captain Bruno Fernandes could be out for "a while" after pulling up with an injury against Aston Villa on Sunday.

United coach Ruben Amorim said Fernandes had sustained a soft tissue injury in the first half of the Premier League game at Villa Park. Villa won 2-1.

"I think it's soft tissues, so it's going to take a while. We'll see," Amorim told Sky Sports.

Fernandes appeared to hurt his hamstring when pulling up.

He played on until the break but was replaced by Lisandro Martinez for the start of the second half.

Fernandes was then seen walking uncomfortably along the sideline as he made his way to the bench for the second half.

"I think he is going to lose some games, but I don't know for sur...