J. Mambuku

J. Mambuku is a 17-year-old central defender at Reims, rated 61.58500000000001 overall by Field Insider's model. A teenage prospect, he has been a fringe squad member this season (11.4% of available minutes). His defensive output reads 2.06 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 2.057 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 62. At 17 Mambuku is still climbing toward his ceiling, and a market index of 16.1 reflects that trajectory.

61.58500000000001

Ratingi

a strong, regular top-tier starter

8.1

Seasoni

below regular-starter level

11.4%

Minutes

limited game time

2.06

Def. actions / 90

moderate defensive volume

Output in context · Reims finished 5th of 18 · an upper-table side

Apps

2.06

Def. / 90

—

Tackles

Interceptions

Clean sheets

2.06 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 3 appearances. Behind an upper-table side (5th 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 11.4% of available minutes — needs a settled run to prove the level.

Outlook

Rated 61.58500000000001 overall — a strong, regular top-tier starter. Defensively he reads as moderate defensive volume (2.06 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.

Per 90 & availability

Minutes played %11.4%

Available fixtures3 of 3

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 902.057

Player flow

Goal involvements0

Pass accuracy %87

Cards / 900

Foul involvement / 903.6

Value & potential by age

Market valueRating

Solid = now · dashed = projected

The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~23), then tapers with age. At 17, Mambuku sits on 16.1, still climbing toward its peak. The blue line is Mambuku's projected Rating — 61.58500000000001 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.

About J. Mambuku

J. Mambuku is a 17-year-old centre-back who plays for Reims. Reims currently sit 6th of 18 in the Ligue 2.

This season

In the current season, J. Mambuku has made 3 appearances with 0 goals and 0 assists across 175 minutes.

J. Mambuku's next match is on August 29, 2026, when Reims face RED Star FC 93 away in the Ligue 2.

Field Insider's view

Field Insider currently rates J. Mambuku at 61.58500000000001 with a Season form score of 8.1. See the full scout report for strengths, watch-points and the market-value outlook.

Transfer news

No transfer news found for this player.