Academy squads across Europe contain a striking excess of players born in the first months of the selection year. The cause is not talent distribution but the way age groups are drawn and judged.
The cut-off creates a hidden age gap
Youth football groups children by a fixed annual cut-off date, which means a squad described as one age group actually spans almost twelve months of development.
At nine or ten years old, eleven months is an enormous proportion of a life, and it shows up as height, strength, coordination and stamina.
The oldest child in the group is physically further along through no effort of his own, and the youngest is competing against a body that has had nearly a year more to grow.
Scouts watch matches, and matches reward size
A scout attending a single fixture sees who wins duels, who outruns the defence and who scores. Those outcomes at that age are heavily physical.
The technically better but smaller player is often the one being knocked off the ball, so his ability is masked by the very thing that makes the assessment unreliable.
Because the decision is made from limited viewing, the physical signal dominates. Selection then rewards the accident of a birth date rather than the underlying player.
Selection compounds itself year after year
Once selected, a child receives better coaching, more matches, better facilities and more attention from the staff who decide the next intake.
The initial advantage therefore becomes a genuine one, because the selected player develops faster than the one who was sent away.
By the time the physical gap closes in the mid teens, several years of unequal training have accumulated, and the original bias has become indistinguishable from real ability.
What clubs have tried to do about it
Some academies now group players by biological maturity rather than by calendar age, using growth measurements instead of birth dates.
Others deliberately hold late-born players back a year, or field them against older groups, so their technical qualities are visible against comparable bodies.
Bio-banding of this kind also exposes the early developer to opponents his own size, which forces him to learn something other than running past people.
Why it matters most for strikers
Centre-forwards are judged on goals more directly than any other position, and youth goals are disproportionately produced by the biggest and fastest child on the pitch.
A late-born forward who scores less at twelve is not a worse finisher, he is a smaller one, and the distinction is easy to lose in a report.
The strikers who arrive in senior football having been released once are frequently these players, having caught up physically after the decision was already made.