Manchester United legend Roy Keane has not been convinced by Harry Maguire's start to life at Old Trafford.

Although Maguire became the world's most-expensive centre-back following his £80m switch from Leicester to United, Keane has worries over his defensive ability.

“I think he has done OK," said Keane on ITV when asked to assess Maguire's first few matches for the Red Devils.

“We're talking about how good he is on the ball but defensively I still have one or two question marks over him. I worry about his pace on the turn.

“I remember the first goal against Crystal Palace and he wasn't doing his best covering his other centre-half.

“Listen, he's 26 years of age now. You're worried if you're pointing these things out to him."