FairValue

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Portrait of José Sá

José

Sá

GKPortugal · Wolverhampton Wanderers

№ 249994Established €1.7M +0.70

Image: FootyLogos

Player dossierPremier League

JoséSá

GKGoalkeeperGoalkeeper

Club
Wolverhampton Wanderers
League
Premier League
Nationality
Portugal
Age
33
Height
192 cm
Foot
Right
Valued
3 Jun 2026

Reading the valuation

The market values Sá at €3.5M. Model A, which never saw Sá during training, estimates €1.7M: the market value is 101% above that estimate.

That is a factor of ×2.01. 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.

▲ +0.70A €1.7M▲ +0.90B €1.4M
Pitch length is a log value scale fitted to this player's figures. ● observed · ◇ Model A · dashed ◇ Model B · each arc is a residual, log(observed) − log(estimate).
Apps
53
Minutes
4,770
Started
53/53
Min / app
90
Cards
4Y 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 Sá…

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 €3.5M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €3.5MModel A €1.7M

Asking 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 485 goalkeepers

José Sá's percentiles among goalkeepers: Minutes, two years 74th, Starts 62nd, Minutes, last 365 days 61st, European club minutes 32nd74thMinutes62ndStarts61stRecent32ndEurope

Dashed ring: the goalkeeper median (50th percentile)

Minutes, two years

Total club minutes in the two-year window: how much the player was used.

4,770 this player2,790 goalkeeper median74th percentile

450peer deciles · median line · this player ●9,210

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
Mar 2013
Peak
€18M
Jun 2022
Model target
€3.5M
Jun 2026
Valuations
30
4 club changes
Jun 2026€3.5MWolverhampton WanderersValuation the model is trained to reproduce

Jun 2026: €3.5M, Wolverhampton Wanderers. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2013-03-18€100kCS Marítimo B
2013-10-08€1MCS Marítimo
2014-08-04€1MCS Marítimo
2015-02-17€800kCS Marítimo
2015-07-01€1.6MCS Marítimo
2016-02-24€1.5MFC Porto
2016-07-29€1.3MFC Porto
2017-02-22€1.3MFC Porto
2017-06-26€1.3MFC Porto
2018-02-07€3MFC Porto
2018-06-13€2.5MFC Porto
2018-12-07€2MOlympiacos Piraeus
2019-05-21€2.5MOlympiacos Piraeus
2019-09-23€3.5MOlympiacos Piraeus
2019-12-18€3.5MOlympiacos Piraeus
2020-04-08€2.8MOlympiacos Piraeus
2020-08-04€6MOlympiacos Piraeus
2021-02-12€7.5MOlympiacos Piraeus
2021-12-23€8MWolverhampton Wanderers
2022-03-29€14MWolverhampton Wanderers
2022-06-15€18MWolverhampton Wanderers
2022-11-03€18MWolverhampton Wanderers
2023-06-20€18MWolverhampton Wanderers
2023-12-19€16MWolverhampton Wanderers
2024-05-27€14MWolverhampton Wanderers
2024-10-01€10MWolverhampton Wanderers
2024-12-16€8MWolverhampton Wanderers
2025-05-30€7MWolverhampton Wanderers
2025-12-09€5MWolverhampton Wanderers
2026-06-03€3.5MWolverhampton Wanderers

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
+0.697

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 →

Premier League555 players · median €18M

Valued above 15% of the 555 Premier League players.

€150k€1M€7.5M€50M€3.5MSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 72% of the 485 goalkeepers.

€20k€200k€2M€20M€3.5MSee them in the Explorer →

Where Sá appears

Watchlists and the comparison tray are kept in this browser only.

Near this valuation closest observed values: same league, then same position

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).