Kim Clijsters thrashes Shahar Peer in Miami

Clijsters returned in 2009 after a two-year break from tennis

Kim Clijsters was in no mood to hang around as she reached the Sony Ericsson Open fourth round in double-quick time.

Belgium's former world number one eased past 17th seed Shahar Peer in just 50 minutes, beating the Israeli 6-0 6-1.

Former Grand Slam winner Justine Henin, mounting a comeback after a 20-month retirement, beat 26th seed Dominika Cibulkova, of Slovakia, 6-4 6-4.

Danish second seed Caroline Wozniacki, rallied to overcome Russian 32nd seed Maria Kirilenko 1-6 6-1 6-4.

"Shahar isn't a player who is going to hit you off the court. She takes the ball very early and doesn't usually make a lot of errors, but I felt I was in control of a lot of the points," said Clijsters.

"I was able to move her from side to side until I felt I could take a couple steps in and go for the winner."

Seventh seed Jelena Jankovic beat Elena Vesnina 7-6 (7-3) 6-3 and will play Australian ninth seed Samantha Stosur, who fought back to beat Virginie Razzano of France 4-6 7-5 6-1.

Defending champion Vera Zvonareva of Russia eliminated Sara Errani 6-2 6-3 and will face Henin.

Another Russian, Anastasia Pavlyuchenkova, defeated Errani's Italian compatriot Francesca Schiavone 7-5 6-3.