The 17-year-old American, who reached the semifinals of the French Open in June, would have been seeded at the Open, which begins Monday.
The main draw of the tournament doesn’t start until next Monday, but there is plenty to see in Flushing Meadows right now.
The 24-year-old Keys went through a series of big names to earn the title in Cincinnati. Daniil Medvedev won the men’s final.
Carlos Ramos, who issued penalties against Williams during last year’s U.S. Open final, will not be assigned to her matches, or her sister’s, this year.
Williams, who was forced to retire from the Rogers Cup final on Sunday, decided shortly before her first-round match was to start in Ohio that she could not compete.
Gauff, the 15-year-old who starred at Wimbledon last month, will play in her second Grand Slam main draw.
After his straight-sets defeat against Richard Gasquet in the Cincinnati Masters, Murray announced that he would not play singles in the United States Open.
Serena Williams and Naomi Osaka met on Friday in Toronto in a rematch of last year’s U.S. Open final. Things went much better.
Williams advanced to the Rogers Cup semifinals by defeating Osaka, 6-3, 6-4, in their first meeting since Osaka won the U.S. Open final last year.
The two young Canadians shared living quarters during the Rogers Cup two years ago, when Shapovalov stunned Rafael Nadal. Now Auger-Aliassime is the country’s rising star.
Gauff, 15, teamed with Caty McNally, 17, to claim the doubles crown at an event in Washington. Gauff said they want to win together again at the U.S. Open.
She returns to tennis next week in Toronto, hoping to revive a difficult season with a return to hardcourts, her favorite surface.
Gauff, 15, won a qualifying match in the Citi Open weeks after her star-making Grand Slam debut. An age eligibility rule prevented her from directly making this event’s main draw.
Anna Tatishvili won an appeal to reclaim her prize money from the French Open, where she lost in the first round and was accused of not performing at a proper level. A similar appeal by Bernard Tomic yielded only a meager concession.
Two players have lost all their prize money from Grand Slam tournaments to cover fines for failing to “perform to a professional standard” in first-round matches.
The dream team lost in the third round at Wimbledon, but Williams said, “I’m so happy that I got to experience it.”