Jannik Sinner has pulled out of the US Open mixed doubles event after struggling with illness and retiring from his Cincinnati Open final against Carlos Alcaraz after just five games on Monday.

Jannik Sinner pulled out of the U.S. Open mixed doubles tournament shortly before it began on Tuesday, a day after he quit in the first set of the Cincinnati Open final because he was feeling ill.

Sinner was going to partner Kateřina Siniaková, probably the greatest active doubles player on earth, in a compelling alliance of the two tennis disciplines.