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> people who are older than officially recorded

This is a persistent story in professional football (soccer). Clubs have taken to measuring wrist bones and other techniques to avoid buying players who are older than they say. A problem for people from countries where the official documentation process is somehow lacking.

How would measuring someone's wrist bones tell you how old they are?

I have no idea, perhaps it's to do with the fusion of the growth plates in late adolescence.

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