8:45 p.m.
U.S. Open champion Stan Wawrinka took time out at the end of his victory speech to remember the victims of the Sept. 11, 2001, attacks.
"It's been a big battle on the court ... four hours," Wawrinka told the crowd in Arthur Ashe Stadium after defeating No. 1-ranked Novak Djokovic 6-7 (1), 6-4, 7-5, 6-3. "But I just want to remember what happened 15 years ago."
The Swiss Wawrinka's statement on court followed that of American Bethanie Mattek-Sands, who won the women's doubles title with Lucie Safarova of the Czech Republic, and appeared to choke up during her victory speech, telling the crowd: "It's a special day today here for everybody in New York."
8:20 p.m.
Pointing to his temple after winning the biggest of points, Stan Wawrinka wore Novak Djokovic down and beat the defending champion 6-7 (1), 6-4, 7-5, 6-3 on Sunday for his first U.S. Open title and third Grand Slam trophy overall.
The 31-year-old Wawrinka is the oldest U.S. Open men's champion since Ken Rosewall was 35 in 1970.
Yet he already had gained the upper hand by the time No. 1 Djokovic clutched at his left leg and grimaced after missing a forehand while getting broken early in the fourth set. From there, Djokovic briefly began conceding points, showing little of the fight he's so famous for, and received treatment on both feet from a trainer.
The No. 3-seeded Wawrinka has won only five of 24 career meetings against No. 1 Djokovic, but has now beaten the 12-time major champion on the way to each of his own Grand Slam titles, including in the 2014 Australian Open quarterfinals and 2015 French Open final.
7:55 p.m.
Novak Djokovic received a medical timeout to get treatment on his feet.
The call for the trainer came with Djokovic down 2 sets to 1 to Stan Wawrinka down 1-3 in the fourth set, and came after he appeared to gripping at his legs and grimacing, as if he had cramps.
But when he went to the trainer he removed both shoes and socks and got treatment on what appeared to be blisters on his toes.
At one point, Djokovic turned to Wawrinka as he as receiving treatment and said, "Sorry man, couldn't stand."
Wawrinka had earlier complained to the chair umpire that such timeouts should wait for the changeover.
7:25 p.m.
Stan Wawrinka is one set from winning the U.S. Open against top-ranked Novak Djokovic.
Wawrinka won the third set 7-5 to take a two sets to one lead in Sunday's final. The third-seeded Wawrinka broke Djokovic's serve in the final game for the second straight set.
Wawrinka is looking to improve to 3-0 in his career in major finals, which includes a victory over Djokovic at last year's French Open. He's won the last 10 tournament finals he's contested.
6:10 p.m.
Stan Wawrinka has evened up the U.S. Open final against Novak Djokovic at a set apiece.
The two-time major champ won the second set 6-4 after Djokovic won the first in a tiebreaker. Wawrinka broke Djokovic's serve in the final game on the Serb's 14th unforced error of the set.
After a shaky start to the match, Wawrinka started to find his form late in the first set, and that continued in the second.
5:35 p.m.
Felix Auger-Aliassime of Canada won the U.S. Open junior title Sunday, beating Miomir Kecmanovic of Serbia 6-3, 6-0.
For the No. 6-seeded Auger-Aliassime, his victory over the fifth-seeded Kecmanovic gives him his first Grand Slam junior singles title after reaching the final at the French Open and winning the boys' doubles title at this year's French Open and last year's U.S. Open. He and fellow Canadian Benjamin Sigouin lost in the U.S. Open junior doubles final Saturday.
The 16-year-old Auger-Aliassime is the second Canadian to take the Open junior title, joining 2013 champion Felip Peliwo.
5:25 p.m.
Novak Djokovic has won the first set of the U.S. Open final against Stan Wawrinka in a tiebreaker.
Djokovic dominated the tiebreaker 7-1 after some shaky moments earlier in the set. He wasted two set points against Wawrinka's serve while leading 5-2, then got broken when he tried to serve out the set in the next game, double-faulting on break point.
But in the tiebreaker, a backhand passing shot by Djokovic put him up 3-1, and he won the next four points to close out the set.
4:40 p.m.
A moment of silence was observed at the U.S. Open to mark the 15th anniversary of the Sept. 11, 2001, attacks.
Broadway performer Norm Lewis, who was set to sing the national anthem in Arthur Ashe Stadium prior to the men's singles final between Novak Djokovic and Stan Wawrinka, asked the crowd to observe the moment "in memory of those lost 15 years ago today."
A huge American flag was unfurled over the court, presented by a Brooklyn-based U.S. Marine Corp battalion. Another gesture was painted on the middle of the court: 9/11/01.
Earlier, American Bethanie Mattek-Sands , who wore star-spangled socks and sweatbands while winning the doubles title with Lucie Safarova of the Czech Republic, choked up during her victory speech, saying, "It's a special day today here for everybody in New York."
4:20 p.m.
Novak Djokovic and Stan Wawrinka are playing for the U.S. Open championship.
The top-ranked Djokovic is seeking his 13th major title. Wawrinka is looking for his third, but he beat Djokovic in last year's French Open final.
Overall, Djokovic is 4-2 against the third-seeded Wawrinka at the majors.
4:15 p.m.
Sixteen-year-old Kayla Day has won the U.S. Open junior tournament, completing an American sweep of the girls' singles and doubles.
The No. 5-seeded Day defeated 13th-seeded Viktoria Kuzmova of Slovakia 6-3, 6-2 Sunday. Day, from Santa Barbara, California, earlier this year reached the semifinals of the Wimbledon juniors. She also won the national 18 championships that earned her a wild card into the Open's main draw, where she advanced past Madison Brengle before losing to No. 8-seeded Madison Keys.
In the girls' doubles final Saturday, the U.S. team of Jada Hart and Ena Shibahara defeated fellow Americans Day and Caroline Dolehide 4-6, 6-2, 13-11. In the boys' final, Juan Carlos Manuel Aguilar of Bolivia and Felipe Meligeni Rodrigues Alves of Brazil defeated the No. 3-seeded Canadian team of Felix Auger-Alliassime and Benjamin Sigouin, 6-3, 7-6 (4).
In the Open's American Collegiate Invitational tournament that ended Saturday, Thai-Son Kwiatkowski and Danielle Collins, both of Virginia, won the singles titles. Collins, a two-time NCAA singles champion, beat Michigan's Ronit Yurovsky, 6-2, 6-4, while Kwiatkowski beat Austin Smith, of Georgia, 6-2, 6-2.
2:58 p.m.
Bethanie Mattek-Sands is the first American to win the U.S. Open women's doubles championship since Liezel Huber and Lisa Raymond in 2011.
No U.S. player had even reached the final since then, until Mattek-Sands and Lucie Safarova of the Czech Republic took the title Sunday.
During the final, which was played on the 15th anniversary of the 9/11 terrorist attacks, Mattek-Sands wore knee-high socks and a left wrist band with the same red-and-white-striped, star-spangled design she did while teaming with Jack Sock to win a gold medal in mixed doubles at the Rio Olympics last month.
During the trophy ceremony, Mattek-Sands choked up and her eyes filled with tears as she told the crowd: "It's a special day today here for everybody in New York."