The U.S. Open is running through its ninth day today.

Below is the schedule of singles fames for Tuesday September 8, according to the U.S. Open website.

5:45 p.m. [Louis Armstrong Stadium]

Men's Singles - 4th Round

Jo-Wilfried Tsonga (FRA) vs Fernando Gonzalez (CHI)

7:00 p.m. [Arthur Ashe Stadium]

Women's singles - Quarterfinals

Flavia Pennetta (ITA) vs Serena Williams (USA)

Men's singles - 4th Round

Gael Monfils (FRA) vs Rafael Nadal (ESP)

Tonight's sessions will be broadcast online through the U.S. Open website.

 TV Schedule for September 8, according to the U.S. Open Website

11:00 am - 7:00 pm

Men's Fourth Round/Various Doubles Matches

Tennis Channel

11:00 a.m. - 6:00 p.m. Men's Fourth Round/Women's Quarterfinals

ESPN2

6:00 pm - 7:00 pm

US Open Scoreboard

ESPN2

7:00 pm-11:00 pm

Men's Fourth Round/Women's Quarterfinal

ESPN2

11:00 pm - 12 am

US Open Tonight

Tennis Channel