The Latest: US Open champ Wawrinka notes 9/11 in victory

The Latest on the U.S. Open (all times local):

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."

Two-time defending champion Wawrinka in Chennai semifinals

Stan Wawrinka advanced to the semifinals of the Chennai Open with a 6-4, 6-4 win over fifth-seeded Guillermo Garcia-Lopez of Spain Friday.

The top-seeded Swiss, a two-time defending champion, fired 14 aces to set up a clash with third-seeded Frenchman Benoit Paire.

Paire also served 14 aces as he defeated Thomas Fabbiano of Italy 6-4, 7-5.