Kobbie Mainoo impressed in Manchester United’s 3-0 win over Everton (AMA/Getty)

Roy Keane hailed Kobbie Mainoo’s performance in Manchester United’s 3-0 win over Everton on Sunday, describing the midfielder’s display as ‘outstanding’.

Mainoo was forced to miss the start of United’s campaign after suffering an ankle injury during pre-season in the summer.

But the 18-year-old has recovered and was handed his first ever Premier League start for United’s trip to Goodison Park.

Mainoo delivered an impressive display at the heart of United’s midfield, with Bruno Fernandes naming him as the team’s Man of the Match after the game.

And Keane was very encouraged by Mainoo’s latest performance for United.

‘Unbelievable,’ Keane told Sky Sports when asked about Mainoo’s display against Everton.

‘We don’t want to get too carried away but I’m sure we will.

‘He looked like he always had time on the ball today, his decision-making, in terms of when to go long when to go short, in terms of off the ball as well. What an all-round performance.

Roy Keane says Kobbie Mainoo was ‘outstanding’ in Manchester United’s win over Everton (Getty)

‘The club obviously think highly of him. With the build-up to the game today, coming to Everton, for the manager to put him in, he and the staff around the place obviously must trust him.

‘Good luck to the kid. He was outstanding. It’s a great start for him. Let’s hope he stays injury-free and gets a run of games for Man United because he looked a Man United type of player.

‘Nice and brave, lots of courage. I loved watching him.’

During his commentary on the game for Sky Sports, Gary Neville added: ‘There’s an 18-year-old out there who looks more composed than anyone.

‘Mainoo has been Manchester United’s best player by a street. A brilliant, brilliant Premier League debut from him.’

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‘He was outstanding. He looked a Man United type of player.’