Day 6 gets underway at the U.S. Open Saturday with third-round action, featuring men's top-seed Roger Federer and women's No. 4 Serena Williams.
Federer will take on Fernando Verdasco of Spain at 11 a.m. at Arthur Ashe Stadium, while Williams will face unseeded Russian Ekaterina Makarova.
CBS Sports Network along with CBS Sports will be broadcasting all of the action from 11 a.m. to 6 p.m. The evening matches can be seen on the Tennis Channel from 7-11 p.m.
Here are some notable third-round matches scheduled today:
Arthur Ashe Stadium, 11 a.m.:
Jelena Jankovic (SRB)  vs. Agnieszka Radwanska (POL) 
Louis Armstrong Stadium, 11 AM:
Andy Murray (GBR)  vs. Feliciano Lopez (ESP) 
Sam Querrey (USA)  vs. Tomas Berdych (CZE) 
Dominika Cibulkova (SVK)  vs. Roberta Vinci (ITA) 
Angelique Kerber (GER)  vs. Olga Govortsova (BLR)
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