Best U23 Young Left-Backs in the Eredivisie
11 players aged 23 or under · ranked by Analytical Strength Index
Best Young Left-Backs in the Eredivisie (Sep 2026)
11 players tracked across 9 clubs. Updated September 2026.
Ranked by Analytical Strength Index
Market Overview: Eredivisie Young Left-Backs 2026-27
Our database tracked 11 Eredivisie Young Left-Backs in the 2026-27 season, representing 9 clubs with a combined market value of €32.0M. The average market value for Eredivisie Young Left-Backs was €2.9M, with the average age at 21 years old.
The most valuable young left-back in the Eredivisie was Jordan Bos, worth €12.0M and played for Feyenoord Rotterdam at 23 years old. The top 5 Young Left-Backs averaged €5.9M in market value, including Mats Rots and Mateo Chávez.
Age distribution showed the youngest tracked young left-back was Lucas Jetten (19 years, Ajax Amsterdam, €700K), while the oldest was Jordan Bos (23 years, Feyenoord Rotterdam, €12.0M). Research shows Young Left-Backs typically peak at age 28.
Historical analysis showed 10 Young Left-Backs (91%) increased in market value over the following 12 months based on age-curve trajectories, then-current performance trends, and playing time analysis. The Eredivisie market for Young Left-Backs remained actively developing with emerging talent in the 2026-27 season.
Explore Market Size by Position in Eredivisie
Interactive bubble chart showing predicted 2-year growth vs current age for all Eredivisie Young Left-Backs. Identify undervalued assets and track market momentum across 9 clubs with €32.0M combined value.
Use the search bar below to find specific players, or apply filters to narrow results by club, age range, or market value. Click the chart icon next to any player to view their historical value trajectory and forecast.
Player Rankings
Ranked by Analytical Strength Index. Click any player to view full profile, or click the chart icon to see value history.
Jordan Bos
Feyenoord Rotterdam • 23 years old
€10.4M
€12.0M
+15.6%
Expected: €11.6M
67.5
Mats Rots
FC Twente Enschede • 20 years old
€10.4M
€12.0M
+15.6%
Expected: €13.2M
66.7
Mateo Chávez
AZ Alkmaar • 22 years old
€3.5M
€4.0M
+15.6%
Expected: €4.1M
49.7
Aske Adelgaard
Go Ahead Eagles • 22 years old
€865K
€1.0M
+15.6%
Expected: €1.0M
28.5
Lucas Jetten
Ajax Amsterdam • 19 years old
€605K
€700K
+15.6%
Expected: €772K
23.2
Emeka Adiele
FC Utrecht • 19 years old
€605K
€700K
+15.6%
23.2
Wouter Prins
FC Groningen • 22 years old
€389K
€450K
+15.6%
18.4
Nazjir Held
FC Utrecht • 21 years old
€346K
€400K
+15.6%
16.6
Mike Kleijn
Sparta Rotterdam • 21 years old
€259K
€300K
+15.6%
13.0
Giannino Vianello
Sparta Rotterdam • 19 years old
€259K
€300K
+15.6%
12.4
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Sign up freeJordan Bos
Feyenoord Rotterdam · 23 years old
67.5
ASI
Current Value
€12.0M
% Change
+15.6%
1yr Forecast Range
€10.5M - €12.8M
Mats Rots
FC Twente Enschede · 20 years old
66.7
ASI
Current Value
€12.0M
% Change
+15.6%
1yr Forecast Range
€11.7M - €14.8M
Mateo Chávez
AZ Alkmaar · 22 years old
49.7
ASI
Current Value
€4.0M
% Change
+15.6%
1yr Forecast Range
€3.7M - €4.5M
Aske Adelgaard
Go Ahead Eagles · 22 years old
28.5
ASI
Current Value
€1.0M
% Change
+15.6%
1yr Forecast Range
€913K - €1.1M
Lucas Jetten
Ajax Amsterdam · 19 years old
23.2
ASI
Current Value
€700K
% Change
+15.6%
1yr Forecast Range
€683K - €861K
Emeka Adiele
FC Utrecht · 19 years old
23.2
ASI
Current Value
€700K
% Change
+15.6%
1yr Forecast Range
Wouter Prins
FC Groningen · 22 years old
18.4
ASI
Current Value
€450K
% Change
+15.6%
1yr Forecast Range
Nazjir Held
FC Utrecht · 21 years old
16.6
ASI
Current Value
€400K
% Change
+15.6%
1yr Forecast Range
Mike Kleijn
Sparta Rotterdam · 21 years old
13.0
ASI
Current Value
€300K
% Change
+15.6%
1yr Forecast Range
Giannino Vianello
Sparta Rotterdam · 19 years old
12.4
ASI
Current Value
€300K
% Change
+15.6%
1yr Forecast Range
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Sign up freeAge Distribution: Eredivisie Young Left-Backs
The Eredivisie LB market shows 2 distinct age segments, with the largest cohort in the 21-23 bracket (7 players, 64% of market). The 21-23 age group holds the most value at €18.3M, averaging €2.6M per player.
Top Young Left-Backs by Age Bracket
U21 Years (4 players)
21-23 Years (7 players)
Market Value Distribution
Elite Tier Concentration
The top 2 Young Left-Backs (18% of players) control €24.0M
Market Tiers
Market structure shows distributed value with mid (€5-15m) tier representing 18% of the Eredivisie LB pool.
Mid (€5-15M)
Emerging (<€5M)
Club Distribution: Eredivisie Young Left-Backs
Among 9 Eredivisie clubs, Feyenoord Rotterdam leads with 1 Young Left-Backs worth €12.0M (averaging €12.0M per player). The top 10 clubs account for 100% of tracked Young Left-Backs.
Feyenoord Rotterdam (1 Young Left-Backs)
FC Twente Enschede (1 Young Left-Backs)
AZ Alkmaar (1 Young Left-Backs)
FC Utrecht (2 Young Left-Backs)
Scout Tools
Advanced analytics for scouting and recruitment decisions. Each tool provides unique insights into player value, potential, and market dynamics.
Pre-Peak Value Efficiency (PPVE)
Identifies pre-peak players offering exceptional value relative to their age bracket. Higher PPVE = better value.
Understanding Pre-Peak Value Efficiency (PPVE)
Feyenoord Rotterdam's Jordan Bos at 23 years old has the highest Pre-Peak Value Efficiency at 26.67×. That means Jordan Bos is valued 26.67× higher than the median player in the 21-23 age bracket-representing exceptional value before reaching peak age.
In second is FC Twente Enschede's Mats Rots, who is 20 years old, with a 17.14× PPVE. Third is Mateo Chávez of AZ Alkmaar, who is 22 years old with a 8.89× PPVE.
How PPVE is calculated: PPVE compares a player's current market value to the median value of all players in their age bracket. A PPVE of 26.67× means the player is worth 2567% more than typical players their age-making them high-value targets before they reach peak value.
PPVE by Age Bracket
| Rank | Player | Age | Bracket | Current Value | Bracket Median | PPVE |
|---|---|---|---|---|---|---|
| #1 | Jordan Bos Feyenoord Rotterdam | 23 | 21-23 | €12.0M | €450K | 26.67x |
| #2 | Mats Rots FC Twente Enschede | 20 | U21 | €12.0M | €700K | 17.14x |
| #3 | Mateo Chávez AZ Alkmaar | 22 | 21-23 | €4.0M | €450K | 8.89x |
| #4 | Aske Adelgaard Go Ahead Eagles | 22 | 21-23 | €1.0M | €450K | 2.22x |
| #5 | Emeka Adiele FC Utrecht | 19 | U21 | €700K | €700K | 1.00x |
| #6 | Wouter Prins FC Groningen | 22 | 21-23 | €450K | €450K | 1.00x |
| #7 | Lucas Jetten Ajax Amsterdam | 19 | U21 | €700K | €700K | 1.00x |
| #8 | Nazjir Held FC Utrecht | 21 | 21-23 | €400K | €450K | 0.89x |
| #9 | Mike Kleijn Sparta Rotterdam | 21 | 21-23 | €300K | €450K | 0.67x |
| #10 | Giannino Vianello Sparta Rotterdam | 19 | U21 | €300K | €700K | 0.43x |
| #11 | Jayden Candelaria NAC Breda | 22 | 21-23 | €150K | €450K | 0.33x |
Return-to-Peak Potential (RPP)
Recovery potential from current value to forecasted peak. Shows how much upside remains for players approaching their prime.
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Upgrade to FanRisk-Adjusted Upside (RAU)
Upside potential weighted against forecast uncertainty. Higher RAU = better risk-reward profile.
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Upgrade to FanRoster Pressure Index (RPI)
Squad depth pressure based on Z-score distribution. Negative RPI = thin depth, positive = deep roster.
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Upgrade to FanAge-Share Concentration (ASC)
Identifies players capturing disproportionate value relative to age group representation. Positive ASC = value concentration.
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Upgrade to FanBuy-Now vs Wait-List Map
Categorizes players by age position and upside potential to guide timing of acquisition.
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Upgrade to FanPrice vs Peer Z-Score
IQR-based pricing analysis relative to position peers. Identifies over/undervalued players vs market.
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How We Rank Eredivisie Young Left-Backs
Our Analytical Strength Index is calibrated specifically for young left-backs, using position-specific age curves and playing time benchmarks. The model draws from academic research on player valuation (Franck & Nüesch, 2012) and age-performance curves (Dendir, 2016).
Scoring Components for LB
Historical Achievement Index (35%)
Peak career market value for Eredivisie young left-backs, reflecting proven track record and reputation. Uses log-scale to account for exponential value distribution at elite level.
Current Performance Proxy (30%)
Present market value for Eredivisie young left-backs, capturing recent form, injuries, and current performance level. Weighted to reflect age-related depreciation patterns.
Playing Time Utilization (18%)
Defenders with 2,500+ minutes score highest, indicating regular starting role and sustained performance.
Age-Adjusted Performance Curve (12%)
Defenders peak at 28 with 5.0%/year decline rate. Pre-peak players score higher on development trajectory.
Competition Level Adjustment (3%)
Eredivisie competition level factored into comparative strength assessment.
Performance Expectations Multiplier (2%)
Players at clubs with Champions League pedigree face higher performance standards and tactical complexity, contributing to development and market validation.
LB Performance Benchmarks
Peak Age: 28 years (balance of physicality and tactical intelligence)
Decline Rate: Widening steps, not a flat rate: about -5% at 29, -10% at 30, steeper from 31 (positioning offsets pace loss)
Optimal Minutes: 2,500 per season (regular starter with rotation management)
1-Year Market Value Forecast
Probabilistic model combining age-curve depreciation, value momentum, and playing time factors:
• Age Factor: Compounding and banded around a peak of 28: +25%/year through age 21, +15% at 22-23, +10% up to the year before peak, then -5%, -10% and steeper with each later band. Growth is damped above €30M.
• Value Trajectory: Near career peak (>95% of peak value): +3% momentum | Moderate decline: -5%
• Playing Time Factor: Regular starters (+2%), Squad rotation (-2%)
• Forecast Range: ±10% confidence interval
Research Foundation
• Dendir (2016): Age-performance curves for young left-backs
• Carmichael et al. (2011): Player depreciation in top leagues
• Franck & Nüesch (2012): Hedonic pricing models for talent valuation
• Szymanski, S. (2015). Money and Soccer: A Soccernomics Guide
Frequently Asked Questions
Common questions about Eredivisie Young Left-Backs in the 2026-27 season
Who are the most valuable Young Left-Backs in the Eredivisie in 2026-27?
The most valuable young left-back in the Eredivisie in 2026-27 is Jordan Bos, who is worth €12.0M and plays for Feyenoord Rotterdam. The second most valuable is Mats Rots (€12.0M, FC Twente Enschede), followed by Mateo Chávez (€4.0M, AZ Alkmaar). Our database tracks 11 Eredivisie Young Left-Backs with comprehensive market valuations updated for the 2026-27 season.
How are Eredivisie Young Left-Backs ranked?
Eredivisie Young Left-Backs are ranked by our proprietary Analytical Strength Index, which is specifically calibrated for Young Left-Backs. The score combines six factors: Historical Achievement Index (35%) measuring peak career value, Current Performance Proxy (30%) reflecting recent market signals, Playing Time Utilization (18%) tracking minutes played, Age-Adjusted Performance Curve (12%) using position-specific peak ages, League Quality Coefficient (3%) for Eredivisie competition level, and Club Tier Multiplier (2%) accounting for club prestige. This methodology is grounded in academic research including work by Dendir (2016) on age-performance curves and Franck & Nüesch (2012) on hedonic pricing models.
What age do Young Left-Backs peak?
Defenders typically peak at age 28. In our valuation model, value then falls in widening steps rather than at a flat annual rate: around -5% at 29, -10% at 30, and -25% or more from 31. Research shows defenders balance physical attributes with tactical intelligence, allowing them to maintain high performance through their late 20s. The optimal playing time for peak performance is around 2,500 minutes per season.
How much does it cost to sign a top young left-back from the Eredivisie?
Transfer fees for Eredivisie Young Left-Backs vary significantly based on market value, contract length, and club bargaining position. For the top-ranked young left-back Jordan Bos (market value: €12.0M), estimated transfer fees would range from €9.6M to €16.8M depending on contract situation. Players with longer contracts (3+ years) command premium fees (1.2-1.4× market value), while those in the final year may be available for 0.8-1.1× market value. Our fee estimates are derived from historical transfer patterns and contract-clock modifiers validated against actual Eredivisie transactions.
What is the value forecast for Eredivisie Young Left-Backs?
Our 1-year forecast model projects market value changes for Eredivisie Young Left-Backs based on age-curve depreciation, historical trajectory, and playing time adjustments. The forecast combines three factors: age-based appreciation/depreciation (pre-peak players compound gains toward their position's peak age, up to +25% a year through age 21 and easing as they approach it, while post-peak players fall in widening steps), market trajectory momentum (comparing current to peak value), and playing time confidence (regular starters receive +2% boost). Forecast confidence intervals account for position-specific volatility-defenders have ±10% volatility. Young players (under 22) and older players (over 32) receive 1.15× uncertainty multipliers due to unpredictable development or decline patterns.
Where does the Eredivisie young left-back data come from?
Our Eredivisie young left-back data is sourced from Football Analytics AI's proprietary Transfer Intelligence Database, which aggregates market valuations, player statistics, contract information, and transfer histories from multiple industry sources. Market values are updated regularly based on player performance, injuries, contract negotiations, and transfer market activity. We enhance this data with our proprietary analytics including position-specific scoring algorithms, age-performance curves calibrated to academic research, and statistical forecast models. All data is validated against official Eredivisie sources and updated monthly for the 2026-27 season to ensure accuracy for recruitment and investment decisions.