Messi becomes World Cup all-time leading scorer - how has he stayed at the top?

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Lionel Messi has become the all-time leading goal scorer in World Cup history. BBC Sport analyzes how Messi has maintained top-level performance into his late 30s, continuing to deliver significant impact on football's biggest stage.

As he becomes the top goalscorer in World Cup history, BBC Sport explores how Lionel Messi is still delivering on the biggest stage in his late 30s.