Manchester United manager Erik ten Hag is confident that Kobbie Mainoo will never 'cross the line', with the teenager being backed to keep his feet on the ground.

Over the space of a few months, the 18-year-old has become a vital player for the Red Devils, while he debuted for England during the March international break.

Mainoo's first appearance for England came off the bench against Brazil last weekend before being handed his first start for the Three Lions against Belgium on Tuesday night.

The midfielder is now seemingly in line to be selected in Gareth Southgate's squad for Euro 2024 and will remain a key player for his club in the latter stages of the campaign providing that he is fit and available.

Ten Hag has lavished praise on his England performances and also insisted that the teenager will keep his feet on the ground amid the noise surrounding him.

"I thought it was very good [display for England] but we are not surprised. We know what he is capable of, he can very quickly adapt to high levels. It looks very natural and we are very happy for him," Ten Hag told reporters during his press conference on Friday.

"Of course, we are also very [proud], it's great for the academy of Manchester United to bring up a player so young going into the national team, it's a big compliment for the whole club.

"For himself because he did it but also all the ones who worked with him during his time in the academy, it's very good news for Manchester United.

"Yes but we have discussed this before. So far, he handles it very well and if he crosses the line, of course, I as a manager, we as coaches, will interfere.

"But so far it is not necessary because he wants to play football, he wants to win, he wants to give his best every day because he wants to improve, he just wants to have fun on the pitch. Fun for him is to play dominant, to dictate the game and win the game."

Mainoo now one of first names on Man United team sheet

Mainoo made his senior debut for Man United in January 2023, but he only featured on three occasions for the Red Devils during the 2022-23 campaign.

The teenager's real breakthrough has come this season, starting each of his team's last 12 Premier League matches, while he was also in the side against Liverpool in the FA Cup before the international break.

Mainoo has become a constant in Ten Hag's first XI, and while the Dutchman will want to be careful when it comes to the Englishman's fitness, he simply has to play due to his importance to the side.

It is now a case of Mainoo, Bruno Fernandes and one more in the Man United midfield, and he is once again set to be in the XI against Brentford in the Premier League on Saturday night.

There have recently been suggestions that the teenager is in line for a new contract, but a recent report claimed that the Red Devils are not rushing a new deal despite the recent speculation.