Casemiro Leaves Man Utd Parting Warning About Kobbie Mainoo

The Brazilian veteran praises the young midfielder's potential to be 'one of the best eights' for over a decade.

Apr. 2, 2026 at 7:05pm

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An abstract, cubist-style painting depicting a soccer match or training session, with the players' forms broken down into sharp, overlapping geometric shapes and planes of color, capturing the dynamic energy of the sport.Casemiro's parting words of wisdom for Manchester United's rising midfield star Kobbie Mainoo reflect the veteran's belief in the young player's boundless potential.Arlington Today

Casemiro has warned Manchester United to keep faith in Kobbie Mainoo, the academy graduate who has emerged as a key player under Michael Carrick's management. The Brazilian veteran, who is leaving Old Trafford in June, believes the 20-year-old has the ability to be 'one of the best eights' for more than 10 years. Mainoo's international career stalled after the 2024 Euros, but a strong finish to the club season could earn him a spot in England's World Cup squad.

Why it matters

Casemiro's endorsement of Mainoo's potential underscores the young midfielder's importance to Manchester United's future. After a difficult spell under the previous manager, Mainoo has regained his place in the starting lineup and could be a key figure for both club and country in the years to come.

The details

Casemiro, who is leaving Manchester United in June, has praised Kobbie Mainoo as the 'present and the future' of the club's midfield. The 20-year-old academy graduate struggled for playing time earlier in the season under former manager Ruben Amorim, but has been a regular starter since Michael Carrick took over in mid-January. Casemiro, who has started alongside Mainoo in recent matches, believes the young Englishman has the potential to be 'one of the best eights' for more than a decade.

  • Mainoo established himself in United's first-team at the age of 18 in 2024.
  • Mainoo played his way into England's starting lineup at the 2024 Euros, where the Three Lions reached the final.
  • Mainoo only made one more appearance for England after the Euros until being recalled last month.
  • Mainoo has started all but 14 minutes of United's Premier League matches since Carrick took over in mid-January 2026.

The players

Casemiro

A Brazilian veteran midfielder who is leaving Manchester United in June 2026.

Kobbie Mainoo

A 20-year-old English midfielder who has emerged as a key player for Manchester United under Michael Carrick's management.

Ruben Amorim

The former Manchester United manager who bizarrely kept Mainoo at arm's length, not starting him in a single Premier League game in the first half of the 2025-26 season.

Michael Carrick

The current Manchester United manager who has restored Mainoo to the starting lineup since taking over in mid-January 2026.

Thomas Tuchel

The England national team manager who will decide whether to include Mainoo in his World Cup squad for the 2026 tournament.

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What they’re saying

“Kobbie is the present and the future. I think that he is one of the best eights and can be for that for the next 12 years. He is a player I really like—he always wants the ball.”

— Casemiro, Manchester United midfielder

“It is true that football can't change your mentality, but Kobbie demonstrated that he hasn't changed his focus once. He has to continue focusing like he is now and continue playing the important role he is now. But what a player he is, he is a great player. He has demonstrated this, in the Euros final with England, he has demonstrated it in finals, he scored in the [2024] FA Cup final.”

— Casemiro, Manchester United midfielder

What’s next

If Mainoo continues his strong form for Manchester United, he will hope to earn a place in England's starting lineup for the 2026 World Cup in Arlington, Texas.

The takeaway

Casemiro's glowing endorsement of Kobbie Mainoo's potential underscores the young midfielder's importance to Manchester United's future. After overcoming a difficult spell earlier in the season, Mainoo has regained his place in the starting lineup and could be a key figure for both club and country in the years to come.