Gael Monfils beat Adolfo Daniel Vallejo 2-6, 6-1, 6-2, 6-0 on his 40th birthday, opening his 18th and final US Open in front of a full Louis Armstrong Stadium.
Alexander Zverev was two points from losing to Lorenzo Sonego in the US Open first round before coming through 6-4, 3-6, 6-7(7), 7-5, 6-4 in four hours and 53 minutes.
Stan Wawrinka's Grand Slam career ended in the first round of the US Open, beaten by Matteo Berrettini after missing seven break points in the second set.
Mariano Navone profile: the Argentine baseliner from Nueve de Julio who won nine Challenger titles, reached No. 29, and beat Novak Djokovic at the US Open.
Arthur Fils won the Cincinnati title eight days ago and lost his US Open opener to Stefanos Tsitsipas. The three previous Cincinnati champions all won in New York.
Djokovic's first-round loss removes the No. 4 seed from the section every preview called the deepest in the draw. What it changes, and what it does not.
Maja Chwalinska arrived at the US Open seeded 20th with one win since the Roland Garros final. Taylor Townsend beat the Pole 6-2, 6-3 in the first round.
Venus Williams lost her US Open first round to Sofia Kenin at 2:01 a.m. after a 12:13 a.m. start, the latest in tournament history. A rule existed to stop it.
Elena Rybakina says she is practising again after the ankle injury that ended her Cincinnati quarterfinal, and she does not play her US Open opener until later in the first round.
Bianca Andreescu and Zheng Qinwen resume US Open qualifying on Friday, one win from the main draw. The 52-week ranking system explains how they got there.
Elena Rybakina takes the WTA No. 1 ranking simply by reaching the US Open semifinals. The draw means Sabalenka, Pegula and Gauff cannot stop her themselves.
Amanda Anisimova has rejected best-of-five sets for women at the majors. The debate now has a scoreboard, and the executive who put it on the agenda has taken over the USTA.
Grand Slam qualifying explained — how the 128-player draw works, how 16 players reach the main draw, and what lucky losers and wild cards change at the majors.
Maja Chwalinska arrived at the US Open seeded 20th with one win since the Roland Garros final. Taylor Townsend beat the Pole 6-2, 6-3 in the first round.
Elena Rybakina says she is practising again after the ankle injury that ended her Cincinnati quarterfinal, and she does not play her US Open opener until later in the first round.
Stan Wawrinka is in the 2026 US Open main draw after Patrick Kypson withdrew. The Grand Slam rulebook shows why one more day would have closed the door.
How induction into the International Tennis Hall of Fame actually works — the three categories, the five-year waiting period, the 75 percent voting threshold and the role fans play.