While the former United striker has lost his power compared to young stars Marcus Rashford and Mason Mount, Grant says Solskjaer still competes in training.
"The gaffer loves it," Grant told the club's website.
"The trouble is that they are striking the ball ridiculously. Rashy [Marcus Rashford], Mason [Greenwood], these guys, they are hitting the ball so hard, the gaffer can't live with them now. His accuracy is still there, though.
"Occasionally, the ball will pop out and he will just rattle one in the bottom corner and he'll give you the eyes."