Rafael Nadal praised Carlos Alcaraz after his second US Open win by defeating Jannik Sinner. "Congratulations...Champion again...and number 1!” Nadal wrote on X. With the victory, Alcaraz reclaimed his World No 1 ranking and secured his sixth Grand Slam title. The 22-year-old is now closing in on Nadal's record as the youngest player to complete a career Grand Slam.