A vintage Novak Djokovic tamed Carlos Alcaraz in a late-night blockbuster to set up anAustralianOpensemi-final with Alexander Zverev as two-time women's defending champion Aryna Sabalenka fought on.

Tennis officials and fans might not appreciate some of his on-court antics but Nick Kyrgios always gets behind causes that matter. Case in point: taking extra time out of his post-match routine for a ...