Manchester United striker Marcus Rashford is still learning the game and England naming him in their Euro 2016 squad could “backfire”, according to Red Devils academy chief Nicky Butt.
England boss Roy Hodgson left the door open for the 18-year-old to make his squad after he scored four goals in his first two appearances for United.
Speaking to BBC Sport, Butt said he was not telling Hodgson what to do.
But he added: “I think talk of England is well too soon for Marcus.”
Rashford scored twice on his debut against FC Midtjylland and added another two goals in a 3-2 win over Arsenal but has since not scored for four games.
Former England midfielder Butt said Rashford had “phenomenal potential” but an international call-up before he is ready could do “more damage than good”.
The 41-year-old, who made 387 appearances for United, said: “It could backfire on everybody and might not be the right thing for him.
“I’m not telling an England manager what to do; it’s his job to pick whoever he feels.
“But for me he’s a young boy who’s still learning the game and has got a long way to go yet.”
Butt was speaking at a Manchester United event with Gulf Oil International.