Aderllan Santos

37 yrs · Centre-back · Brazil
Avs Futebol · Liga Portugal · Foot: right · Height: 193 cm
Risk: Very HighConfidence: MediumSample: MediumDevelopment: LowContract: until 30 Jun 2026
Market value
€100k
Updated 7 days ago
Estimated acquisition
€26k – €205k
Estimated · 20–80% range
Model value
€72k – €374k
Performance-implied · estimated
Projected (24m)
€76k – €111k
Resale range · estimated
Potential value gap
-€133k – €347k
Model value − acquisition

Value picture

Where the market, the likely price and the model estimates sit.

Estimated acquisition€26k – €205k
Model value (performance-implied)€72k – €374k
Projected value (24 months)€76k – €111k
Dashed line: current market value (€100k). Bars are 20–80% model ranges; tick = median.

The model rates Aderllan Santos's performance-implied value at EUR 0.1M-0.4M, above the estimated acquisition range of EUR 0.0M-0.2M. Its 24-month market value projection is EUR 0.1M-0.1M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Acquisition note: Contract end date unavailable: range widened by 15% each side.

Bargain Index: not assigned

What drives the score. Not a black box: each component and its level.

Market value below EUR 250k (outside validated pool)

PerformanceBelow average33th pct among DEF peers (age-neutral)
AgeUnfavorable37.2 years
Acquisition costNeutralest. €95k vs market €100k
Expected appreciationNeutral+9% over ~2 years (model)
Value gapLargeweak predictor on its own
DevelopmentLow
League translationModerateleague coefficient 0.58
Tactical fitNot evaluatedRequires event/role data not available from the current free source.
RiskVery High
Data confidenceMedium

Bargain Index = percentile (among all evaluated players) of expected 2-year value relative to estimated cost. See methodology and backtests.

Market value history

Market value ≠ transfer fee ≠ acquisition cost.

Highest recorded: €7.5M

Profile vs positional peers

Percentiles among 1268 evaluated DEF players with 900+ minutes.

Performance (last season, league)

Minutes
1032 (34% of available)
Goals + assists / 90
0.09
Context-adjusted G+A / 90
0.13
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
33 (Below average)

Adjusted = shrunk toward positional baseline for small samples, corrected for team dominance over opponents, expressed relative to positional peers in the same league.

Context

League strength
0.58 (rank 9)
Team strength (Elo)
1182
Opponent strength
1326
Possession, role
Data unavailable

League strength 1.00 = average club of the big-five leagues. Elo includes continental matches.

Potential

Development
Low
Trajectory
stable
Breakout probability
Age > 23
Resale range (24m)
€76k – €111k

Trajectory drivers: minutes share down 38 pts; changed club; relative output up 87% vs positional peers.

Historical comparables (8): median 2-year value change +0% (IQR -32% to +0%).

Risk profile

Overall: Very High

  • ▲Age 37: resale value typically declines.
  • ⚠Limited sample: 1032 league minutes last season.
  • ⚠League level coefficient 0.58 (1.00 = big-five average): output may not translate.
  • ⚠No continental-competition minutes last season.
  • ⚠Played under 40% of available league minutes (injury data unavailable, cause unknown).
  • ⓘContract end date unavailable (or stale in source).
  • ⓘInjury history unavailable from current data source.

League translation

What happened to players who moved from this league to the big-five leagues (observed, not a forecast).

Historical movers
66 (DEF)
Relative output kept
57%–168%
Held a regular role (900+ min)
76%
Confidence
Medium

Output is relative to positional peers in each league. Movers are a selected group (clubs buy players who fit), so treat this as context, not a guarantee.

Season-by-season (domestic league)

Context-adjusted values are model outputs.

SeasonClubLeaguePosAppsMinMin shareGAG+A/90Adj. G+A/90Opp. EloTeam EloLeague str.
2025/26Avs FutebolLiga PortugalCB17103234%100.090.13132611820.58
2024/25Rio Ave FCLiga PortugalCB18158252%010.060.07136112700.51
2024/25Avs FutebolLiga PortugalCB1059920%000.000.06136211540.51
2023/24Rio Ave FCLiga PortugalCB32284893%300.090.10138013170.58
2022/23Rio Ave FCLiga PortugalCB32282492%100.030.05139713290.68
2020/21Rio Ave FCLiga PortugalCB32279091%200.060.07135413200.61
2019/20Rio Ave FCLiga PortugalCB30266887%000.000.02138614120.59
2016/17Valencia CFLaligaCB12100129%000.000.03154614991.11
2015/16Valencia CFLaligaCB17152044%000.000.03161015561.17
2015/16SC BragaLiga PortugalCB21806%000.000.05136114400.58
2014/15SC BragaLiga PortugalCB31274290%300.100.09140114570.68
2013/14SC BragaLiga PortugalCB26223683%300.120.11145114270.74
2012/13SC BragaLiga PortugalCB981030%100.110.07139615330.86

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2020/21Uefa Europa League QualifyingRio Ave FC3330001466
2016/17Copa Del ReyValencia CF314000—
2015/16Copa Del ReyValencia CF654000—
2015/16Uefa Champions LeagueValencia CF2180001481
2015/16Uefa Europa LeagueValencia CF2180101592
2013/14Uefa Europa League QualifyingSC Braga2210001395

Small continental samples are shown for context only and are not over-weighted.

Historical comparables

Most similar profiles 2+ years ago (same position group) and what happened next. Chosen by similarity only — failures included.

Player (then)AgeValue then~2y laterOutcome
Oleksandr Kucher
Super Lig · 2019
37€100k€100kflat
Steven Vitória
Liga Portugal · 2024
37€100k€50kfell
Michel Breuer
Eredivisie · 2018
38€100k€100kflat
Adrián Lucero
Super League 1 · 2020
36€200k€150kfell
Marcelo Oliveira
Liga Portugal · 2017
36€100k€50kfell
Jorge Teixeira
Jupiler Pro League · 2023
37€100k€100kflat
Yalcin Ayhan
Super Lig · 2019
37€50k€50kflat
Vincent Sasso
Liga Portugal · 2024
33€200k€200kflat

Transfer history

Fees as reported by the source; undisclosed fees shown as unknown, never estimated.

DateFromToFeeMV at time
23 Jan 2025Rio AveAvs FSFree / loan€200k
1 Jul 2020Al-AhliRio AveFree / loan€2.0M
30 Jun 2020Rio AveAl-AhliFree / loan€2.0M
13 Aug 2019Al-AhliRio AveFree / loan€2.5M
28 Jan 2019ValenciaAl-Ahli€5.0M€2.5M
31 Dec 2018EC VitóriaValenciaFree / loan€2.5M
24 Apr 2018ValenciaEC VitóriaFree / loan€3.0M
23 Apr 2018São PauloValenciaFree / loan€3.0M
15 Jul 2017ValenciaSão PauloFree / loan€3.5M
27 Aug 2015BragaValencia€9.5M€7.5M
1 Jul 2013Braga BBragaUnknown€500k
1 Jul 2012TrofenseBraga BUnknown€350k
1 Jul 2010SalgueiroTrofenseUnknownData unavailable

MoneyballAI identifies statistical opportunities from available data. A player flagged as a potential bargain is not guaranteed to succeed, to transfer, to rise in value, or to generate resale profit. Market values, fees and contracts come from third-party sources; ranges are model estimates with stated confidence.