Radamel Falcao
Radamel Falcao has been limited to substitute appearances since returning from injuryGetty Images

For the first time since his arrival at Manchester United, Radamel Falcao has cast doubt on whether he will remain at the club on a permanent basis.

The Colombian international signed from Monaco on a season-long loan deal in a sensational transfer deadline day move but has seen his season disrupted by injury.

Falcao has been limited to just three starts this season after suffering a calf injury in late October – a knock both the player and his manager Louis van Gaal have stressed is not related to the knee problem that ended his season last January.

The United boss introduced Falcao off the bench for brief cameos against Hull City and Stoke City in recent weeks but the striker has not started a game since 5 October.]

While Falcao understands concerns over his fitness, he admits he may have to consider his options.

"From my point of view, yes, I want to stay but obviously I have to analyse the situation," Falcao said. "I'll see if I play more and see what decision the board takes. But from my point of view, I really want to stay.

"I feel ready for the moment that the team needs me. Whenever I have the opportunity to come on, I try do my best for the coach and I try to help the team.

"Every footballer wants to play, no one is happy when they are not playing, when they are on the bench, but whenever I am given the opportunity, whether it be for five, 10, 20 or 90 minutes, I have to give my best."

United have the option to sign the 28-year-old striker on a permanent deal next summer for a reported fee of £43m and Falcao has claimed he wishes to remain at the club for "many years".