Jannik Sinner says coach Darren Cahill will retire after season
Jannik Sinner will part ways with veteran coach Darren Cahill after this season, the world's top-ranked tennis player ...
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Australian Open: Jannik Sinner drops rare set en route to third round
World number one Jannik Sinner dropped a set for the first time in 14 matches on Thursday before surging back to keep his ...