Field Insider

based on the 2025/26 season · updated 18 Aug 2026

Profile

Full nameKobbie Boateng Mainoo
PositionDefensive midfielder
NationalityEngland
Age21
Date of birth19 Apr 2005
BirthplaceStockport
Height175 cm
Shirt number#37
ClubManchester United
Defensive midfielder
2
Appearances
0
Goals
0
Assists
103
Minutes

Domestic-league season · Manchester United.

Scout report

Squad depthDefensive midfielder

K. Mainoo is a 21-year-old defensive midfielder at Manchester United, rated 89 overall by Field Insider's model. A young player, he has been a rotation option this season (48.8% of available minutes). His defensive output reads 3.5 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Mainoo.

On the season, Mainoo graded 28 for current form (age-blind), on 1 goal, 2 assists and 3.503 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 28 → 28). Over the 4 seasons on record his form has drifted down, peaking in 2023/24.

On long-term talent our Rating reads 89. At 21 Mainoo is still climbing toward his ceiling, and a market index of 96.1 reflects that trajectory.

From the career report
Read the full career report →

Past his 2023/24 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2023/24Trending down
89
Ratingi
elite — among the best in the position
28.1
Seasoni
below regular-starter level
48.8%
Minutes
rotation minutes
3.5
Def. actions / 90
solid defensive volume

Output in context · Manchester United finished 3rd of 20 · an upper-table side

28
Apps
3.5
Def. / 90
35
Tackles
20
Interceptions
4
Clean sheets

3.5 tackles, blocks & interceptions per 90 — solid defensive volume, with 4 clean sheets across 28 appearances. Behind an upper-table side (3rd of 20) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume. Going forward he chipped in 1 goal and 2 assists — a useful bonus from the back.

Strengths

  • Attacking threat. Chips in from deep: 0.16 goal involvements per 90, useful for a defensive midfielder.
  • Defensive volume. 3.5 tackles, blocks & interceptions per 90 — does the unseen work.
  • Pedigree. Performing in a top-tier setting (team strength 99/100).
  • Ceiling. High potential at just 21 — room to grow into a bigger role.

Watch points

  • Game time. Only 48.8% of available minutes — needs a settled run to prove the level.

Outlook

Rated 89 overall — elite — among the best in the position. Defensively he reads as solid defensive volume (3.5 tackles, blocks & interceptions per 90). At 21 the trajectory points up — potential sits near its ceiling (97/100) and market value should climb as minutes and output follow. With this floor already at 21, the ceiling gets tested by a step up in level — one to track.

Generated from Field Insider's rating model · AI-written analysis to follow.

Season statistics

Bars = where he ranks among defensive midfielders in the Premier League with 600+ minutes this season.

Shooting

Goals1

Passing

Assists2

Defending

Tackles35
Interceptions20
Blocks10

Yellow/red cards

Yellow cards2
Red cards0

Transfer news

No transfer news found for this player.