Field Insider
65.9
19.4%
Ratingi
19
58.3%
Seasoni
26.7
Valuei

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

Profile

Full nameDerek Mazou-Sacko
PositionCentral midfielder
NationalityFrance
Age21
Date of birth6 Oct 2004
BirthplaceStains
Height175 cm
Shirt number#29
ClubMillwall
More about D. Mazou-Sacko →
Central midfielder

Season stats

Full career & schedule →
23
Appearances
1
Goals
1
Assists
1190
Minutes

Domestic-league season · Millwall.

Scout report

Squad depthCentral midfielder

D. Mazou-Sacko is a 21-year-old central midfielder at Millwall, rated 64.3 overall by Field Insider's model, ranking 21st of 169 on scout potential in the Championship and 190th of 1770 U-23 players tracked. A young player, he has been a fringe squad member this season (27.5% of available minutes). His defensive output reads 3.63 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Mazou-Sacko.

Judged on this season alone, Mazou-Sacko graded 15 — a solid campaign that ranks top 36% of the 34 central midfielders in the Championship, on 1 goal, 1 assist and 3.63 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 12 → 15). Across the 4 seasons we hold, it's his best return yet.

On long-term talent our Rating reads 64, top 9% of the 34 central midfielders in the Championship. At 21 Mazou-Sacko is still climbing toward his ceiling, and a market index of 26.7 reflects that trajectory.

From the career report
Read the full career report →

A career still climbing — Mazou-Sacko is at his peak right now, and the curve hasn't flattened.

Peak: 2025/26Trending upRemarkably consistentStepped up 2025/26Injury-hit 2025/264 clubs
Current potentialTop 9% central midfielders · ChampionshipCurrent seasonTop 36% central midfielders · Championship12th-best central midfielder in the Championship21st in the Championship · potential3rd-highest potential central midfielder in the Championship190th-highest potential U-23 tracked
64.3
Ratingi
3rd of 34 central midfielders
14.6
Seasoni
below regular-starter level
27.5%
Minutes
limited game time
3.63
Def. actions / 90
solid defensive volume

Output in context · Millwall finished 3rd of 24 · an upper-table side

23
Apps
3.63
Def. / 90
30
Tackles
18
Interceptions
5
Clean sheets

3.63 tackles, blocks & interceptions per 90 — solid defensive volume, with 5 clean sheets across 23 appearances. Behind an upper-table side (3rd of 24) 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 1 assist — a useful bonus from the back.

Strengths

  • Attacking threat. Chips in from deep: 0.15 goal involvements per 90, useful for a central midfielder.
  • Defensive volume. 3.63 tackles, blocks & interceptions per 90 — does the unseen work.
  • Ceiling. High potential at just 21 — room to grow into a bigger role.

Watch points

  • Game time. Only 27.5% of available minutes — needs a settled run to prove the level.

Outlook

With a Rating of 64.3, Mazou-Sacko carries the 3rd-highest potential of the central midfielders in the Championship (top 9%). Defensively he reads as solid defensive volume (3.63 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 central midfielders in the Championship with 600+ minutes this season.

Shooting

Goals1

Passing

Assists1

Defending

Tackles30
Interceptions18

Yellow/red cards

Yellow cards2
Red cards0

Transfer news

No transfer news found for this player.