Manchester United have agreed to extend defender Joe Dudgeon's loan spell at Carlisle until the end of the season.
Dudgeon, 20, has made only two appearances for the Cumbrians since arriving on January 27 due to a knee injury which has kept him out of action since early February.
Carlisle manager Greg Abbott said: "As it stands, Joe will remain on-loan to us, but will do all his rehab and knee strengthening work with Manchester United.
"If there became a situation where we had an injury, we could call on Joe and he would play a part in the remainder of the season.
"We've reached an agreement with Manchester United which is an unbelievably favourable one for Joe and for Carlisle United. They've been terrific with us and I think it's a reward for all the good work that they think we've done with them this season.
"I spoke to somebody very high up at Manchester United and they are going to look after us financially in the deal and they can keep an eye on him at their training ground. If we do need him, he's still our player and we can use him."