Nathaniel
Adjei
CBGhana · FC Lorient
Player dossierLigue 1
NathanielAdjei
CBCentre-BackDefender
- Club
- FC Lorient
- League
- Ligue 1
- Nationality
- Ghana
- Age
- 23
- Height
- 191 cm
- Foot
- Right
- Valued
- 1 Jun 2026
Ligue 1Reading the valuation
The market values Adjei at €1.5M. Model A, which never saw Adjei during training, estimates €2.4M: the market value is 36% below that estimate.
That is a factor of ×1.57. Model A's typical held-out miss is ×1.50 either way, so this gap is larger than its usual error.
Without league and club, Model B estimates €1.5M, closer to the market here, although it is usually further off (typical miss ×2.07).
A gap describes the model's arithmetic for this player's inputs, not what the player is worth.
- Apps
- 15
- Minutes
- 833
- Goals
- 0
- Assists
- 0
- Started
- 9/15
- Min / app
- 56
- Cards
- 0Y 0R
Club matches, two years to the valuation date
The Valuation Journey
What moves Model A
Asking the prediction API to explain Model A for Adjei…
SHAP describes the model's arithmetic for this player's inputs, not what causes market value. Model B can be explained only by the live service; Model A also has a published explanation for the research players.
Model A vs Model B against the observed €1.5M
Checking APIAsking the prediction API…
Held-out estimates come from cross-validation, with this player outside the training data: the honest comparison. Served models were refitted on every player, this one included, so they sit closer to the market. Shaded band: Model A's typical miss (×1.50 either way).
Player traitspercentiles vs 2,065 defenders
Dashed ring: the defender median (50th percentile)
European club minutes
Share of minutes played in UEFA club competitions.
0% this player0% defender median30th percentile
No passing, progression or defensive actions exist in the dataset, so no trait claims to measure them.
Valuation history every Transfermarkt valuation on record
- First valuation
- €25k
- Jan 2019
- Peak
- €2.5M
- Mar 2024
- Model target
- €1.5M
- Jun 2026
- Valuations
- 14
- 2 club changes
Jun 2026: €1.5M, FC Lorient. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2019-01-25 | €25k | Danbort FC |
| 2019-11-11 | €50k | Danbort FC |
| 2021-01-16 | €50k | Danbort FC |
| 2022-09-02 | €125k | Hammarby IF |
| 2022-12-14 | €300k | Hammarby IF |
| 2023-06-27 | €400k | Hammarby IF |
| 2023-09-13 | €800k | Hammarby IF |
| 2023-12-08 | €1.5M | Hammarby IF |
| 2024-03-19 | €2.5M | FC Lorient |
| 2024-06-03 | €2.5M | FC Lorient |
| 2024-12-04 | €2M | FC Lorient |
| 2025-06-02 | €1.5M | FC Lorient |
| 2025-12-15 | €1.2M | FC Lorient |
| 2026-06-01 | €1.5M | FC Lorient |
Audit context group-level, not about this player
- Audit group
- non-UEFA
- Population gap, Model A
- +0.093 95% CI +0.063 to +0.124
- This player, market vs held-out A
- −0.449
The group comes from first-listed citizenship and is never a model input. Across the population, non-UEFA players' market values sit about 10% above Model A's held-out estimates, relative to UEFA players in the same leagues. One player's residual says nothing about that pattern (typical miss ×1.50), and none of it is evidence of discrimination: the target may itself be biased. Open the Fairness Audit
In context observed value among comparable players in this build
All players in the Terminal →Ligue 1423 players · median €5M
Valued above 13% of the 423 Ligue 1 players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 43% of the 2,065 defenders.
See them in the Explorer →Where Adjei appears
- TerminalLigue 1 in the Player Explorer
- TerminalLigue 1 on the League Landscape
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- HradeckyGKAS Monaco · Ligue 1€1.5M
- MeunierRBLOSC Lille · Ligue 1€1.5M
- LalaRBStade Brestois 29 · Ligue 1€1.5M
- SchmidtCMFC Toulouse · Ligue 1€1.5M
- TraunerCBFeyenoord Rotterdam · defenders€1.5M
- KüblerRBSC Freiburg · defenders€1.5M
- WalkerRBBurnley FC · defenders€1.5M
- TrippierRBNewcastle United · defenders€1.5M
Counts and ranks of observed Transfermarkt values only; model errors are never ranked here. Full player export: Every player in the modelling population (D-011).