Alexandr Dolgopolov

WATCH: Seven-time Wimbledon champ Roger Federer asks ball boy Haris Khan for an unlikely favour after hitting 10,000th ace

Wimbledon 2017: Here is why Roger Federer’s first-round win at All England Club is special

Roger Federer pleads for no panic measures over Wimbledon pull-outs

ATP Acapulco: Novak Djokovic returns with victory, beats Martin Klizan in straight sets

Rio Open: Top seed Kei Nishikori suffers first-round loss to Brazil's Thomaz Bellucci

Barcelona Open: Rafael Nadal, Kei Nishikori enter semi-finals

Roger Federer doesn't want his kids to take up tennis as career