Madrid - World number one Serena Williams cruised into the last 16 of the Madrid Masters on Wednesday with a 6-2, 6-3 thrashing of China's Peng Shuai.
The 17-time Grand Slam champion had too much power off the ground and on serve for the world number 42 as a pair of breaks clinched the first set before one break in the second was enough to set up a third round meeting with Spain's Carla Suarez Navarro or fellow American Alison Riske.
Latest results from the fifth day of the combined ATP Madrid Masters and WTA Madrid Open on Wednesday (x denotes seeded player):
Tomas Berdych (CZE x6) bt Kevin Anderson (RSA) 6-1, 6-4
Lukasz Kubot (POL) bt Gilles Simon (FRA) 7-5, 2-6, 6-4
Rafael Nadal (ESP x1) bt Juan Monaco (ARG) 6-1, 6-0
Jarkko Nieminen (FIN) bt Igor Sijsling (NED) 6-3, 6-2
John Isner (USA x9) bt Marinko Matosevic (AUS) 7-6 (11/9), 6-7 (5/7), 7-5
Ernests Gulbis (LAT) bt Alexandr Dolgopolov (UKR) 6-3, 6-4
Simona Halep (ROM x4) bt Lara Arruabarrena (ESP) 6-4, 6-4
Caroline Garcia (FRA) bt Maria Kirilenko (RUS) - walkover
Serena Williams (USA x1) bt Peng Shuai (CHN) 6-2, 6-3
Carla Suarez Navarro (ESP x14) bt Alison Riske (USA) 6-2, 6-4
Roberta Vinci (ITA) bt Caroline Wozniacki (DEN x13) 6-3, 6-3