Kyrgios not happy to see Lleyton Hewitt's son sharing the practice court with Sinner ahead of the Australian Open.
Jannik Sinner could be banned from tennis later this year and a Grand Slam great has given Tennis365 his verdict.
After chiding ITIA over its handling of doping allegations surrounding Jannik Sinner and Iga Swiatek, Novak Djokovic has now ...
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