US Open Kicks Off with World No. 1 Sinner Out, Rybakina Cleared for Play

The US Open officially begins today, Sunday, August 30, with significant player news impacting the tournament. World No. 1 Jannik Sinner has withdrawn due to a right knee injury. Meanwhile, Australian Open champion Elena Rybakina has eased injury fears, stating she feels "all good" after a heel injury forced her retirement from a recent Cincinnati WTA quarter-final.