Jannik Sinner faces Carlos Alcaraz on Monday for the title.

Carlos Alcaraz won the Cincinnati Open title in little over 20 minutes Monday afternoon, after his nearest rival and world No. 1 Jannik Sinner retired through illness down 5-0.

Sinner fell behind 5-0 in the first set with nine unforced errors.

The much-hyped pairing of Carlos Alcaraz and Emma Raducanu was bounced in the first round of the new U.S. Open mixed doubles event on Tuesday.

Jack Draper is into the semi-finals of the new-look US Open mixed doubles tournament.