Kyrgios fumes at 'biased as s**t' chair umpire

Nick Kyrgios has lost his temper at the Marseille Open, accusing officials of bias towards Frenchman Jo-Wilfried Tsonga.

Raonic, del Potro set up Delray Beach clash

Miami (AFP) - Former US Open winner Juan Martin del Potro defeated defending champ Sam Querrey in straight sets to reach his second straight Delray Beach Open semi-final on Friday.