U.S. Open tennis featured matches for Sunday

(seedings in parentheses; all times Pacific)

ARTHUR ASHE STADIUM

Beginning at 8 a.m.: David Nalbandian vs. Rafael Nadal (2); Andy Roddick (21) vs. Julien Benneteau; Maria Kirilenko (25) vs. Samantha Stosur (9).

Beginning at 4 p.m.: Feliciano Lopez (25) vs. Andy Murray (4); Sabine Lisicki (22) vs. Vera Zvonareva (2).

LOUIS ARMSTRONG STADIUM

Beginning at 8 a.m.: Peng Shuai (13) vs. Flavia Pennetta (26); Juan Martin del Potro (18) vs. Gilles Simon (12); Alex Bogomolov vs. John Isner (28).

GRANDSTAND

Not before 11:30 a.m.: Donald Young vs. Juan Ignacio Chela (24).