Domestic-league season · Nantes.
Missed 5 of Nantes's ~33 games this season through 4 injury absences and 1 suspension (arm, inactive, shoulder). He still appeared 20 times — a solid return given how little of the season he was available. His rating is judged mainly on the games he was fit to play.
On loan at Strasbourg — UEFA Europa Conference League: 1 apps, 0g 0a, 188 min
The headline Season rating covers his time at Nantes; availability counts only fixtures while in this squad.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 Ligue 1 | 15 | 1 | 1 | 1263 | 6.8 |
| Ligue 1at Strasbourg | 5 | 0 | 0 | 379 | 6.58 |
 UEFA Europa Conference Leagueat Strasbourg | 1 | 0 | 0 | 188 | 6.6 |
 Coupe de France | 2 | 0 | 0 | 180 | 6.75 |
| Coupe de Franceat Strasbourg | 1 | 0 | 0 | 10 | 6.3 |
Following his move to Nantes, Mwanga's current-season form is up 100% on last season (Season 18→36), while his Rating climbed 72→77. That makes this his strongest season for form to date.
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Nantes · 17th | 20 | 1 | 1 | 6.8 | 77 | 36 |
| 2024/25 | Le Havre · 15th | 19 | 1 | 4 | 6.84 | 72 | 18 |
| 2023/24 | Strasbourg · 13th | 22 | 1 | 1 | 6.85 | 72 | 26 |
| 2022/23 | Bordeaux · 3rd | 35 | 0 | 1 | 6.89 | 67 | 27 |
| 2021/22 | Bordeaux · 20th | 1 | 0 | 0 | 7 | 61 | 1 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
J. Mwanga is a 23-year-old full-back at Nantes, rated 77 overall by Field Insider's model, ranking 79th of 324 in the Ligue 1. An emerging talent, he has been an ever-present this season (91.2% of available minutes). His defensive output reads 3.23 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Mwanga.
Judged on this season alone, Mwanga graded 36 — a workmanlike campaign that ranks 32nd of 61 of the 61 full-backs in the Ligue 1, on 4 clean sheets and 3.234 defensive actions per 90.
Year-on-year, that's a clear step up on last season (Season 18 → 36). Across the 5 seasons we hold, it's his best return yet.
On long-term talent our Rating reads 77, top 22% of the 61 full-backs in the Ligue 1. At 23 Mwanga is still climbing toward his ceiling, and a market index of 124.7 reflects that trajectory.
Read the appearance count in context: Mwanga missed 4 games through injury and 1 suspension (arm, inactive, shoulder) out of roughly 33 this season. The 20 he did play is a solid return on the time he was fit, and his ratings are weighted toward those games rather than the ones he sat out injured.
Mwanga is operating at his career peak — the 2025/26 level is the level.
3.23 tackles, blocks & interceptions per 90 — moderate defensive volume, with 4 clean sheets across 20 appearances. Doing that for a relegation-threatened side (17th of 18) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight. Going forward he chipped in 1 goal and 1 assist — a useful bonus from the back.
With a Rating of 77, Mwanga carries the 13th-highest potential of the full-backs in the Ligue 1 (top 22%), and he is posting that for a relegation-threatened side (Nantes finished 17th of 18) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as moderate defensive volume (3.23 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 2×) with the best seasons likely ahead. With this floor already at 23, 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.
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 (~125), then tapers with age. At 23, Mwanga sits on 124.7, at or near its peak. The blue line is Mwanga's projected Rating — 77 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.
No transfer news found for this player.
