The Manchester United medical staff are reportedly confident that David de Gea's injury is not anything serious.

The Spanish goalkeeper picked up a knee complaint during the warm-up ahead of United's Europa League clash away at FC Midtjylland.

He was unable to take his place between the posts, with Sergio Romero deputising in the 2-1 loss.

However, according to the Daily Mail, the initial feeling is that De Gea will not be sidelined for too long.

The report adds that the 25-year-old will undergo a scan and further assessment in Manchester tomorrow.