Nick Kyrgios of Australia returns to Dustin Brown of Germany in their second round match during the Wimbledon Championships at the All England Lawn Tennis Club, in London, Britain, 01 July 2016. EPA/ANDY RAIN

Dustin Brown of Germany returns to Nick Kyrgios of Australia in their second round match during the Wimbledon Championships at the All England Lawn Tennis Club, in London, Britain, 01 July 2016. EPA/ANDY RAIN

Nick Kyrgios of Australia returns to Dustin Brown of Germany in their second round match during the Wimbledon Championships at the All England Lawn Tennis Club, in London, Britain, 01 July 2016. EPA/ANDY RAIN

Dustin Brown of Germany returns to Nick Kyrgios of Australia in their second round match during the Wimbledon Championships at the All England Lawn Tennis Club, in London, Britain, 01 July 2016. EPA/ANDY RAIN

Nick Kyrgios of Australia returns to Dustin Brown of Germany in their second round match during the Wimbledon Championships at the All England Lawn Tennis Club, in London, Britain, 01 July 2016. EPA/ANDY RAIN

Nick Kyrgios of Australia (L) at the net with Dustin Brown of Germany whom he defeated in their second round match during the Wimbledon Championships at the All England Lawn Tennis Club, in London, Britain, 01 July 2016. EPA/ANDY RAIN