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5 live's Wimbledon commentary team are interrupted by a loud panting sound, only to realise that it was coming from a worn-out ball boy.

Alastair Eykyn, Pat Cash and Marion Bartoli were commentating for 5 live Sport on Serena Williams' second round game against Timea Babos.

Today at Wimbledon it was the hottest day of the year with even the roof on Centre Court being closed before play to preserve the grass.

The ball boy's mouth is positioned directly next to the on-court microphone and can be heard in the background - only to the delight of the commentary team.

This clip was first heard on 5 live Sport on 1st July 2015.