ATP No. 1 Jannik Sinner retired just 23 minutes into the Cincinnati Open men's singles final, allowing Carlos Alcaraz to win the Rookwood Cup.

Jannik Sinner Sends Message Before Facing Carlos Alcaraz in Cincinnati Open Final originally appeared on Athlon Sports. It comes as no surprise that the world No. 1 and No. 2 are back again for the Cincinnati Open final. Jannik Sinner faces Carlos Alcaraz on Monday for the title.

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.