Results on Saturday from the US Open tennis championships (x denotes seed):
Women: 3rd round
Venus Williams (USA x7) bt Alona Bondarenko (UKR x27) 6-2, 6-1
Agnieszka Radwanska (POL) bt Dominika Cibulkova (SVK x18) 6-0, 6-3
Amelie Mauresmo (FRA x32) bt Julie Coin (FRA) 6-4, 6-4
Serena Williams (USA x4) bt Ai Sugiyama (JPN), 6-2, 6-1
Flavia Pennetta (ITA x16) bt Nadia Petrova (RUS x19) 4-6, 6-4, 6-3
Anna-Lena Groenefeld (GER) bt Alize Cornet (FRA x17) 6-4, 7-5
Dinara Safina (RUS x6) bt Timea Bacsinszky (SUI) 3-6, 7-5, 6-2
Severine Bremond (FRA) bt Tathiana Garbin (ITA) 7-5, 3-6, 6-4
Men: 3rd round
Sam Querrey (USA) bt Ivo Karlovic (CRO x14) 7-6 (7/5), 7-6 (7/5), 6-2
Rafael Nadal (ESP x1) bt Viktor Troicki (SRB) 6-4, 6-3, 6-0
Stanislas Wawrinka (SUI x10) bt Flavio Cipolla (ITA) 5-7, 6-7 (4/7), 6-4, 6-0, 6-4
Andy Murray (GRB x6) bt Jurgen Melzer (AUT) 6-7 (5/7), 4-6, 7-6 (7/5), 6-1, 6-3
Gael Monfils (FRA x32) bt David Nalbandian (ARG x7) 6-3, 6-4, 6-2
Kei Nishikori (JPN) bt David Ferrer (ESP x4) 6-4, 6-4, 3-6, 2-6, 7-5
Juan Martin Del Potro (ARG x17) bt Gilles Simon (FRA x16) 6-4, 6-7 (4/7), 6-1, 3-6, 6-3
Mardy Fish (USA) bt James Blake (USA x9) 6-3, 6-3, 7-6 (7/4)