Manchester United boss Louis van Gaal admits Radamel Falcao has it all to prove.
Falcao will feature against Hull City this weekend.
Asked if he believes the former Porto and Atletico Madrid striker can rediscover the form that made him one of the most feared strikers in world football, Van Gaal said: "I hope so because we have him on loan because of that.
"Every player in my selection has to fight for his position. I shall always take the best of the players and it has to be suitable for the mix of players. It's also an obligation of a player that he does that."
