World No. 1 Jannik Sinner Withdraws US Open Mixed Doubles Due Illness

Jannik Sinner, the current world No. 1 and defending US Open singles champion, withdrew from the 2025 US Open mixed doubles event due to illness following his retirement from the Cincinnati Open final against Carlos Alcaraz. Sinner had been scheduled to partner with renowned doubles player Katerina Siniakova but announced his withdrawal shortly before the mixed doubles tournament began, prioritizing recovery to focus on his singles title defense. The US Tennis Association replaced Sinner and Siniakova with an alternate team based on the highest combined singles ranking. Alcaraz, who won the Cincinnati final quickly, is set to partner Emma Raducanu in mixed doubles, while Iga Swiatek will team up with Casper Ruud. The new mixed doubles event features top singles players and a $1 million prize, but Sinner's withdrawal marked the loss of one of its most compelling pairs. Sinner emphasized his need for rest to prepare for the US Open singles competition, aiming to extend his dominance on hard courts.