Estimated market value (beta)
Overview
Weighted average of attribute scores for this role, position-adjusted. Standout attributes count more than weaknesses.
Attributes (grouped)
Mobility
Plausible baseline mobility for a young Eredivisie academy center-back. (conf 0.35)
Likely adequate recovery pace typical of a developing centre-back. (conf 0.35)
Presumed average turning and positional adjustment for his age group. (conf 0.35)
Youth-level conditioning expected to hold up over Eredivisie reserve minutes. (conf 0.35)
Control
Unproven technical control, assumed modest for a teenage defender. (conf 0.3)
Limited carrying expected as a central defender still developing on the ball. (conf 0.3)
Baseline physical shielding assumed for his build and age at this level. (conf 0.3)
Not a notable striking threat, typical for a young centre-back. (conf 0.3)
Distribution
Presumed competent build-up passing expected from a Sparta academy defender. (conf 0.35)
Unremarkable range assumed, no evidence of standout distribution. (conf 0.3)
Minimal expected involvement in crossing duties as a centre-back. (conf 0.3)
Developing game reading typical of a teenage central defender. (conf 0.3)
Chance threat
Negligible finishing responsibility expected in his defensive role. (conf 0.3)
Rarely shoots, consistent with a young centre-back profile. (conf 0.3)
Assumed standard positional discipline for his age and role. (conf 0.3)
No indication of set-piece shooting responsibility at this stage. (conf 0.3)
Duels
Presumed reasonable aerial baseline expected of a developing centre-back. (conf 0.35)
Assumed competent tackling and duel engagement for his level. (conf 0.35)
Defense
Baseline pressing effort typical of Dutch academy defensive training. (conf 0.3)
Modest interception and duel-winning ability assumed at this stage. (conf 0.3)
Fundamentals likely still developing under Sparta's youth coaching structure. (conf 0.35)
Mental
Composure under pressure unproven at senior level for a 16-year-old. (conf 0.3)
Decision-making still maturing, typical for his age and experience level. (conf 0.3)
Assumed diligent effort consistent with academy development expectations. (conf 0.35)
Resilience
No known injury history, presumed durable given youth and low senior minutes. (conf 0.3)
Outlook
Very young age leaves considerable developmental runway if he progresses at Sparta. (conf 0.35)
Obscure name with no significant recognition beyond Sparta Rotterdam's academy setup. (conf 0.35)
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Scouting Report & Player Insights
L. Martes is a young centre-back in the Sparta Rotterdam pathway in the Eredivisie, with little public track record at senior level as of early 2026. At just 16, his profile reflects a developing defender whose attributes are largely projected from typical Dutch academy standards rather than confirmed first-team output. Any breakthrough into Sparta's senior squad would be the clearest signal of his trajectory going forward.