ATP: World No. 1 Jannik Sinner (knee) withdraws from U.S. Open

World No. 1 and 2024 champion Jannik Sinner withdrew from the upcoming U.S. Open on Friday with a knee injury. The Italian star’s news came less than 24 hours after rival Carlos Alcaraz of Spain announced he will make his comeback at the season’s final Grand Slam tournament. “Even though I have been working hard […] The post ATP: World No. 1 Jannik Sinner (knee) withdraws from U.S. Open appeared…