Former Arsenal player Paul Merson has claimed that it is a "big ask" for teenager Anthony Martial to make an instant impact at Old Trafford following his £36m transfer to Manchester United.
The 19-year-old, who has signed a four-year deal, made a surprise move from Monaco to England on transfer deadline day.
"I feel for Anthony Martial," Merson wrote for Sky Sports. "He was playing for 5,000 people at Monaco on top of a car park and now he is going to be playing in front of 70,000 at Old Trafford - that's a big ask for the lad.
"They have let a lot of strikers go and I think they will be left short after not getting a top-drawer centre-forward in."