Jannik Sinner and Carlos Alcaraz are locked in a tennis rivalry that is shaping up to be among the sport's greatest. They've even been dubbed "Sincaraz." Their epic, more-than-five-hour match at the French Open demonstrated this,

The latest chapter of the Jannik Sinner-Carlos Alcaraz rivalry took a stunning turn on Monday when world No. 1 Sinner retired in the first set of the Cincinnati Open final due to an unspecified health issue.

Carlos Alcaraz has hailed rival Jannik Sinner's ‘unbelievable’ hardcourt form as the pair prepare for another potential Grand Slam showdown. The world’s two best players can’t meet until the final at the US Open, which gets underway today at Flushing Meadows.