Nishikori was injured in May and pulled out of the French Open. The 2014 U.S. Open runner-up from Japan returned earlier this month for a first-round loss in Cincinnati but said his back isn't healthy enough to play in New York.

Jannik Sinner’s recovery from physical and psychological stress was outlined, easing doubts over his US Open participation after the Cincinnati setback.

Iga Swiatek on Tuesday shrugged off lingering weariness to partner Casper Ruud to back-to-back victories in the revamped mixed doubles competition at the US Open. Swiatek — who on Monday had battled through a two-hour tussle with Jasmine Paolini to win the Cincinnati Open — looked full of energy as she and Ruud powered into semi-finals.

After a rough start to the year, Świątek (+310) is now basically neck and neck odds-wise with Sabalenka (+290), who is, again, the defending US Open champion. If anyone can unseat Sabalenka, it sure feels like Świątek is the most likely to do it.

The following are some of the other contenders for the men's singles title at the U.S. Open, which begins on Sunday:

The newly renovated tournament brought out a more practice courts, upgraded hospitality, and a record attendance of fans.

Carlos Alcaraz seemingly still plans to play the US Open mixed doubles with Emma Raducanu. There had been some question marks about whether he would pull out due to reaching the final of the

Raducanu has laughed off rumours of a love interest.