Bailly has endured mixed fortunes at Old Trafford since completing a £30 million ($41m) move from Villarreal in June 2016.

The Ivory Coast international helped the Red Devils win a Europa League and League Cup double in his first season but has since been unable to hold down a regular spot in the team due to fitness issues.

Ferdinand thinks the centre-back has all the qualities to slot in alongside Maguire in the long-term, but he still has some doubts over his physical condition.

“A big thing that has gone under the radar is Eric Bailly,” the United legend said on his YouTube channel FIVE.

“He’s added a little bit of pace and steeliness to that back four. My only issue with Eric Bailly has always been his fitness, he can never stay fit.

“He’s always injured or a game away from an injury, and that’s a problem. You don’t get that consistency of performance or get to know each other.

“I think Maguire needs pace next to him, he has other attributes but pace isn’t one of them. In the modern game, to have two centre-backs who aren’t electric quick, you’ve got a problem.

“Bailly has good attributes, he’s quick and aggressive. If he can cut the silly mistakes out which he had previously and gets away from injuries and gets a clean bill of health, I think Manchester United are onto a good thing.”

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