Bouna
Sarr
RBSenegal · FC Metz
Player dossierLigue 1
BounaSarr
RBRight-BackDefender
- Club
- FC Metz
- League
- Ligue 1
- Nationality
- Senegal
- Age
- 34
- Height
- 178 cm
- Foot
- Right
- Valued
- 1 Jun 2026
Ligue 1Reading the valuation
The market values Sarr at €350k. Model A, which never saw Sarr during training, estimates €337k: the market value is 4% above that estimate.
That is a factor of ×1.04. Model A's typical held-out miss is ×1.50 either way, so this gap is within its usual error.
Without league and club, Model B estimates €449k, further from the market. Model B is usually further off (typical miss ×2.07): league and club explain much of how the market prices players.
A gap describes the model's arithmetic for this player's inputs, not what the player is worth.
- Apps
- 12
- Minutes
- 897
- Goals
- 0
- Assists
- 0
- Started
- 10/12
- Min / app
- 75
- Cards
- 1Y 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 Sarr…
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 €350k
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)
Starts
Share of appearances started rather than entered from the bench.
83% this player83% defender median52nd 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
- €50k
- Jul 2011
- Peak
- €9M
- Aug 2020
- Model target
- €350k
- Jun 2026
- Valuations
- 34
- 4 club changes
Jun 2026: €350k, FC Metz. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2011-07-22 | €50k | FC Metz |
| 2011-09-03 | €300k | FC Metz |
| 2011-12-25 | €300k | FC Metz |
| 2012-06-01 | €300k | FC Metz |
| 2014-01-13 | €750k | FC Metz |
| 2014-08-07 | €1M | FC Metz |
| 2015-01-14 | €1M | FC Metz |
| 2015-06-06 | €1.5M | FC Metz |
| 2015-09-06 | €2M | Olympique Marseille |
| 2016-02-04 | €2M | Olympique Marseille |
| 2016-07-13 | €1.8M | Olympique Marseille |
| 2017-01-16 | €2M | Olympique Marseille |
| 2017-06-01 | €2M | Olympique Marseille |
| 2018-01-24 | €3.5M | Olympique Marseille |
| 2018-06-04 | €6M | Olympique Marseille |
| 2018-10-24 | €8M | Olympique Marseille |
| 2018-12-17 | €8M | Olympique Marseille |
| 2019-06-03 | €6M | Olympique Marseille |
| 2019-12-19 | €8M | Olympique Marseille |
| 2020-04-08 | €6.5M | Olympique Marseille |
| 2020-08-03 | €9M | Olympique Marseille |
| 2021-02-10 | €5.5M | Bayern Munich |
| 2021-06-09 | €4M | Bayern Munich |
| 2021-10-07 | €3M | Bayern Munich |
| 2021-12-22 | €3M | Bayern Munich |
| 2022-06-09 | €2.5M | Bayern Munich |
| 2022-11-09 | €2.5M | Bayern Munich |
| 2023-06-22 | €2M | Bayern Munich |
| 2023-12-14 | €2M | Bayern Munich |
| 2024-05-29 | €1.5M | Bayern Munich |
| 2024-10-16 | €1M | Without Club |
| 2025-04-04 | €700k | Without Club |
| 2025-10-21 | €400k | Without Club |
| 2026-06-01 | €350k | FC Metz |
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
- +0.037
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 2% of the 423 Ligue 1 players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 12% of the 2,065 defenders.
See them in the Explorer →Where Sarr 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
- RadakovicCBFC Nantes · Ligue 1€400k
- CarlgrenGKFC Nantes · Ligue 1€400k
- HaugGKFC Toulouse · Ligue 1€400k
- PercinGKAJ Auxerre · Ligue 1€400k
- GodeauCBSK Beveren · defenders€350k
- CroneRBFC Fredericia · defenders€350k
- MalyshCBIngulets Petrove · defenders€350k
- GammelbyRBSilkeborg IF · defenders€350k
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).