Manchester United great Rio Ferdinand has taken aim at captain Harry Maguire.

Ferdinand claims Ole Gunnar Solskjaer's "biggest concern" about his United team is that Maguire can't be trusted in one-on-one situations.

"I think that's Ole's biggest concern - can he leave Maguire one v one on the halfway line? Or Lindelof?" Ferdinand told his YouTube channel.

"It's proven that you can't as that's not their main attributes.

"Harry Maguire is good at a lot of other things but that area, that's one of his weak points."

By contrast, right-back Aaron Wan-Bissaka excels in one-on-one situations, as shown when he marked Raheem Sterling out of the recent Manchester derby, but needs work on playing out from the back.

Ferdinand said: "I think Wan-Bissaka can be coached into that, I think he's going to have to do a lot of work on the training ground on the ball and with the ball.

"His strongest point, we saw against City, his ideal scenario is to be left one v one against the wide man. There's nobody better around than him."