Javi
Sánchez
CBSpain · FC Arouca
Player dossierLiga Portugal
JaviSánchez
CBCentre-BackDefender
- Club
- FC Arouca
- League
- Liga Portugal
- Nationality
- Spain
- Age
- 29
- Height
- 189 cm
- Foot
- Right
- Valued
- 28 May 2026
Liga PortugalReading the valuation
The market values Sánchez at €800k. Model A, which never saw Sánchez during training, estimates €1.2M: the market value is 35% below that estimate.
That is a factor of ×1.54. 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 €1.4M, 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
- 42
- Minutes
- 3,404
- Goals
- 2
- Assists
- 1
- Started
- 42/42
- Min / app
- 81
- Cards
- 12Y 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 Sánchez…
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 €800k
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
- €100k
- Aug 2016
- Peak
- €3M
- Jul 2020
- Model target
- €800k
- May 2026
- Valuations
- 28
- 2 club changes
May 2026: €800k, FC Arouca. Dotted lines mark the €2M, €10M and €30M tier boundaries.
Show as a table
| Date | Market value | Club |
|---|---|---|
| 2016-08-23 | €100k | Real Madrid Castilla |
| 2017-02-02 | €100k | Real Madrid Castilla |
| 2017-06-30 | €100k | Real Madrid Castilla |
| 2018-01-01 | €300k | Real Madrid Castilla |
| 2018-05-30 | €300k | Real Madrid Castilla |
| 2018-08-07 | €1M | Real Madrid Castilla |
| 2019-02-19 | €1M | Real Madrid Castilla |
| 2019-06-29 | €2M | Real Madrid Castilla |
| 2019-12-20 | €1.5M | Real Valladolid CF |
| 2020-04-08 | €1.2M | Real Valladolid CF |
| 2020-07-23 | €3M | Real Valladolid CF |
| 2020-10-08 | €3M | Real Valladolid CF |
| 2021-01-05 | €2.8M | Real Valladolid CF |
| 2021-06-10 | €2.8M | Real Valladolid CF |
| 2021-12-27 | €2.5M | Real Valladolid CF |
| 2022-06-29 | €2.5M | Real Valladolid CF |
| 2022-11-07 | €3M | Real Valladolid CF |
| 2023-06-13 | €3M | Real Valladolid CF |
| 2023-10-13 | €2.5M | Real Valladolid CF |
| 2023-12-20 | €2M | Real Valladolid CF |
| 2024-03-26 | €1.5M | Real Valladolid CF |
| 2024-06-24 | €1.5M | Real Valladolid CF |
| 2024-12-27 | €2M | Real Valladolid CF |
| 2025-03-21 | €1.8M | Real Valladolid CF |
| 2025-06-09 | €1.5M | Real Valladolid CF |
| 2025-10-16 | €1M | Real Valladolid CF |
| 2025-12-30 | €800k | Real Valladolid CF |
| 2026-05-28 | €800k | FC Arouca |
Audit context group-level, not about this player
- Audit group
- UEFA
- Population gap, Model A
- +0.093 95% CI +0.063 to +0.124
- This player, market vs held-out A
- −0.430
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 →Liga Portugal423 players · median €1M
Valued above 35% of the 423 Liga Portugal players.
See them in the Explorer →Defenders, all leagues2,065 players · median €2M
Valued above 29% of the 2,065 defenders.
See them in the Explorer →Where Sánchez appears
Watchlists and the comparison tray are kept in this browser only.
Near this valuation closest observed values: same league, then same position
- RamosGKFC Porto · Liga Portugal€800k
- KuipersLBFC Arouca · Liga Portugal€800k
- XekaCMGD Estoril Praia · Liga Portugal€800k
- VirgíniaGKSporting CP · Liga Portugal€800k
- CaraccioloCBPisa Sporting Club · defenders€800k
- BianchettiCBUS Cremonese · defenders€800k
- WidmerRB1.FSV Mainz 05 · defenders€800k
- WinckRBKasimpasa · defenders€800k
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).