Flawed genius Nick Kyrgios 'comfortable' with himself
The enigmatic Australian stunned the tennis world as a 19-year-old in 2014 when he beat then world number one Rafael Nadal on his way to the Wimbledon quarter-finals. But frequent tantrums and fines have overshadowed his undoubted talent and he has never achieved a better finish at a Grand Slam. Eight years on, Kyrgios again finds himself in the last eight at Wimbledon and this time with a serious chance to realise his full potential.