Nick Kyrgios set to share the 'secrets behind his game' as he launches online course

Tennis bad boy Nick Kyrgios treats new girlfriend Costeen Hatzi to a $3K Louis Vuitton handbag

Nick Kyrgios' shocks with hard-partying confession as he admits to drinking 17 shots a night

Nick Kyrgios' ex Chiara Passari poses in a tiny bikini on the Gold Coast