Abdallah
Sima
LWSenegal · RC Lens
Player dossierLigue 1
AbdallahSima
LWLeft WingerAttack
- Club
- RC Lens
- League
- Ligue 1
- Nationality
- Senegal
- Age
- 24
- Height
- 188 cm
- Foot
- Right
- Valued
- 1 Jun 2026
Ligue 1Reading the valuation
The market values Sima at €5M. Model A, which never saw Sima during training, estimates €10.8M: the market value is 54% below that estimate.
That is a factor of ×2.15. 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 €9.4M, 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
- 57
- Minutes
- 2,456
- Goals
- 12
- Assists
- 4
- Started
- 26/57
- Min / app
- 43
- Cards
- 6Y 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 Sima…
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 €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 1,583 attackers
Dashed ring: the attacker median (50th percentile)
European club minutes
Share of minutes played in UEFA club competitions.
21% this player0% attacker median85th 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
- €8M
- Dec 2020
- Peak
- €11M
- Apr 2021
- Model target
- €5M
- Jun 2026
- Valuations
- 15
- 5 club changes
Jun 2026: €5M, RC Lens. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2020-12-27 | €8M | SK Slavia Prague |
| 2021-04-19 | €11M | SK Slavia Prague |
| 2021-06-25 | €11M | SK Slavia Prague |
| 2021-11-24 | €8M | Stoke City |
| 2022-05-13 | €8M | Stoke City |
| 2022-11-02 | €7M | Angers SCO |
| 2023-06-27 | €6M | Angers SCO |
| 2023-12-05 | €7M | Rangers FC |
| 2024-05-30 | €7.5M | Rangers FC |
| 2024-10-07 | €8M | Stade Brestois 29 |
| 2024-12-10 | €10M | Stade Brestois 29 |
| 2025-06-03 | €9M | Stade Brestois 29 |
| 2025-10-10 | €6M | RC Lens |
| 2025-12-15 | €4M | RC Lens |
| 2026-06-01 | €5M | RC Lens |
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
- −0.767
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 45% of the 423 Ligue 1 players.
See them in the Explorer →Attackers, all leagues1,583 players · median €2.5M
Valued above 64% of the 1,583 attackers.
See them in the Explorer →Where Sima 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
- SaïdSSRC Lens · Ligue 1€5M
- ThauvinRWRC Lens · Ligue 1€5M
- NicolaisenCBFC Toulouse · Ligue 1€5M
- LopezDMParis FC · Ligue 1€5M
- WoodCFNottingham Forest · attackers€5M
- PolitanoRWSSC Napoli · attackers€5M
- DybalaSSAS Roma · attackers€5M
- DespodovRWPAOK Thessaloniki · attackers€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).