Federer urges tennis players to respect ball-boys, ball-girls

Swiss tennis player Roger Federer has called on other tennis players to respect ball-boys and ball-girls after Spanish tennis player Fernando Verdasco's rant over a sweaty towel. Verdasco was criticised on social media last week after appearing to berate a ball-boy for not bringing his towel quickly enough during a semi-final defeat at the Shenzhen Open.