Former Manchester City footballer Danny Mills has said Ole Gunnar Solskjaer is toying with his job by setting Jadon Sancho at wing-back.
According to reports, United are working on a tactical switch to play with three central defenders instead of a back-back, which will include wing-backs.
With Aaron Wan-Bissakka presumably unsuitable, rumours say Sancho has been training as a wing-back.
“Good luck turning him into a wing-back!’ Mills told Football Insider.
“He didn’t play for England too much in the Euros because I don’t think he was reliable enough to track back and do the defensive side of it. Dortmund never played him there.
“You bought a winger who is going to create chances and score goals. Suddenly you’re going to play him at wing-back in an unbelievably leaky defence. It’s like, really?
“That’s almost a sackable offence in itself.
“Shall we put Cristiano Ronaldo at centre-half because he can head a ball? I think Ronaldo can head the ball better than the centre-halves at the moment so should they put him at centre-half? It’s more than a little bit ridiculous,” the Englishman concluded.
Meanwhile, United are looking ahead to the Premier League trip to Watford this weekend.