based on the 2025/26 season · updated 18 Aug 2026
Profile
Season stats
Full career & schedule →Domestic-league season · Reims.
Performance data · by competition
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Ligue 2 | 1 | 0 | 0 | 71 | 7 |
Scout report
★ Standout performer
All Ligue 2 standouts →First senior season on record — and already on the pitch for 79% of Reims's available minutes, one of the top game-time debuts in the Ligue 2 this season.
J. Mambuku is a 17-year-old central defender at Reims, rated 65.291 overall by Field Insider's model. A teenage prospect, he has been a fringe squad member this season (28.8% of available minutes). His defensive output reads 2.25 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Mambuku.
On the season, Mambuku graded 8 for current form (age-blind), on 1 clean sheet and 2.25 defensive actions per 90.
We hold a single season for Mambuku, so there's no year-on-year comparison to draw yet — the read above is this campaign only.
On long-term talent our Rating reads 65. At 17 Mambuku is still climbing toward his ceiling, and a market index of 17.1 reflects that trajectory.
Output in context · Reims finished 2nd of 18 · a title-challenging side
2.25 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 7 appearances. Behind a title-challenging side (2nd of 18) 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.
Strengths
- Ceiling. High potential at just 17 — room to grow into a bigger role.
Watch points
- Game time. Only 28.8% of available minutes — needs a settled run to prove the level.
Outlook
Rated 65.291 overall — a strong, regular top-tier starter. Defensively he reads as moderate defensive volume (2.25 tackles, blocks & interceptions per 90). At 17 the trajectory points up — potential sits near its ceiling (100/100) and market value should climb as minutes and output follow. With this floor already at 17, 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 centre-backs in the Ligue 2 with 600+ minutes this season.
Shooting
Passing
Possession
Defending
Yellow/red cards
Transfer news
No transfer news found for this player.
