Montassar
Talbi
CBTunisia · FC Lorient
Player dossierLigue 1
MontassarTalbi
CBCentre-BackDefender
- Club
- FC Lorient
- League
- Ligue 1
- Nationality
- Tunisia
- Age
- 28
- Height
- 190 cm
- Foot
- Right
- Valued
- 1 Jun 2026
Ligue 1Reading the valuation
The market values Talbi at €8M. Model A, which never saw Talbi during training, estimates €5.4M: the market value is 47% above that estimate.
That is a factor of ×1.47. 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 €2.6M, 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
- 29
- Minutes
- 2,610
- Goals
- 0
- Assists
- 1
- Started
- 29/29
- Min / app
- 90
- Cards
- 3Y 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 Talbi…
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 €8M
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.
100% this player83% defender median97th 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
- €150k
- Jun 2017
- Peak
- €8M
- Jun 2023
- Model target
- €8M
- Jun 2026
- Valuations
- 25
- 3 club changes
Jun 2026: €8M, FC Lorient. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2017-06-28 | €150k | Esperance Tunis |
| 2018-01-23 | €250k | Esperance Tunis |
| 2018-06-09 | €350k | Esperance Tunis |
| 2019-01-04 | €300k | Caykur Rizespor |
| 2019-06-04 | €250k | Caykur Rizespor |
| 2020-01-03 | €550k | Caykur Rizespor |
| 2020-04-08 | €500k | Caykur Rizespor |
| 2020-08-04 | €700k | Caykur Rizespor |
| 2020-12-23 | €575k | Caykur Rizespor |
| 2021-03-16 | €725k | Caykur Rizespor |
| 2021-05-21 | €950k | Caykur Rizespor |
| 2021-09-15 | €1M | Rubin Kazan |
| 2021-12-29 | €1.5M | Rubin Kazan |
| 2022-06-02 | €1.2M | Rubin Kazan |
| 2022-09-19 | €2.5M | FC Lorient |
| 2022-11-02 | €4M | FC Lorient |
| 2023-03-27 | €5M | FC Lorient |
| 2023-06-27 | €8M | FC Lorient |
| 2023-12-18 | €8M | FC Lorient |
| 2024-06-03 | €7M | FC Lorient |
| 2024-10-03 | €6M | FC Lorient |
| 2024-12-04 | €5M | FC Lorient |
| 2025-06-02 | €6M | FC Lorient |
| 2025-12-15 | €7M | FC Lorient |
| 2026-06-01 | €8M | 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
- +0.384
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 59% of the 423 Ligue 1 players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 78% of the 2,065 defenders.
See them in the Explorer →Where Talbi 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
- RongierCMStade Rennais FC · Ligue 1€8M
- UdolLBRC Lens · Ligue 1€8M
- SoumaréLWLe Havre AC · Ligue 1€8M
- KluivertCBOlympique Lyon · Ligue 1€8M
- LaporteCBAthletic Bilbao · defenders€8M
- MaguireCBManchester United · defenders€8M
- CanceloRBFC Barcelona · defenders€8M
- ShawLBManchester United · defenders€8M
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).