Manchester United boss Ole Gunnar Solskjaer is wary of asking too much from Dean Henderson.
There are some suggestions that on-loan Sheffield United goalkeeper Henderson could return to Old Trafford next season and fight David De Gea for the No.1 spot.
But Solskjaer said: "It's a different job to be playing for Sheffield United and for Man United.
"There's different, how do you say...he's got different roles.
"For me, the two years he's had have been fantastic for his development. He's had to play with men, play against men, he's played in the Championship.
"He's played now behind a team that's played fantastic football and exciting football and, as the stats show, he's proven worthy of quite a few points at this stage.
"He's learning all the time. He's a passionate keeper that wants to be the best so he's developing, he's got good coaching there.
"I think one day he'll be England number one and Man United number one and it's up to him to keep developing."