England great Alan Shearer says Marcus Rashford isn't a natural striker.

Against Nottingham Forest, Rashford scored Manchester United's first goal after sweeping in a well-worked corner routine initiated by Christian Eriksen and then teed up Anthony Martial to fire in the second midway through the first half.

With Martial operating as the main striker, the England international played a little deeper on the left, which enabled him to cause problems for the Forest defence with his movement.

"I think Marcus enjoys it more, he looks better certainly, in the position we saw tonight," Shearer said on Amazon Prime.

"He's been given a little bit of freedom - if he wants to go down the middle at times, he can.

"But when he's got all that space to run into from out wide, he's a better player in doing that and he's very, very good at doing that.

"In terms of him being a centre-forward, he lacks that killer instinct, that natural ability to think 'yeah, I'm going to get in there, I'm going to get the two or three yarders'.

"But there's no doubting his ability, he's a fantastic player."