Kyrgios abuses umpire, poses for selfie and is docked a game in Miami Open defeat

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Nick Kyrgios once again lost his cool as he succumbed to defeat in an extraordinary match at the Miami Open on Tuesday.

The Australian went down to a 7-6, 6-3 loss to Jannik Sinner in their fourth round match and clashed with the chair umpire, Carlos Bernardes. Kyrgios started well, forcing his Italian opponent into saving break points in successive games. But he soon vented his frustration at the surface, which he believed was playing too slow, and then at the volume of Bernardes' walkie-talkie.