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 77% 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 67.144 overall by Field Insider's model, ranking 59th of 128 on scout potential in the Ligue 2 and 31st of 163 U-19 players tracked. A teenage prospect, he has been a rotation option this season (40.5% of available minutes). His defensive output reads 3.77 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Mambuku.
Judged on this season alone, Mambuku graded 20 — a workmanlike campaign that ranks 39th of 40 of the 40 centre-backs in the Ligue 2, on 2 clean sheets and 3.774 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 67, 20th of 40 of the 40 centre-backs in the Ligue 2. At 17 Mambuku is still climbing toward his ceiling, and a market index of 17.6 reflects that trajectory.
Output in context · Reims finished 3rd of 18 · an upper-table side
3.77 tackles, blocks & interceptions per 90 — solid defensive volume, with 2 clean sheets across 9 appearances. Behind an upper-table side (3rd 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
- Defensive volume. 3.77 tackles, blocks & interceptions per 90 — does the unseen work.
- Ceiling. High potential at just 17 — room to grow into a bigger role.
Watch points
- Game time. Only 40.5% of available minutes — needs a settled run to prove the level.
Outlook
With a Rating of 67.144, Mambuku carries the 20th-highest potential of the centre-backs in the Ligue 2 of 40 — though on just 9 appearances this season, so the standing rests on a small sample. Defensively he reads as solid defensive volume (3.77 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.
