Aleksandra Wozniak of Canada was a straight- set winner in first-round action at the $2.168 million Rogers Cup tennis event on Tuesday.
Wozniak, who lost her second-round match at the Olympics to eventual champ Serena Williams, downed Daniela Hantuchova of Slovakia 7-5, 7-6 (7-5), on the hardcourts at Uniprix Stadium at Jarry Park.
Hantuchova reached the third round of the Summer Games before falling to Caroline Wozniacki.
Williams, who is not defending her title this week, whipped Aussie Samantha Stosur in last year's finale in Toronto, as this tournament shifts between Toronto and Montreal each year.
The top seeds, who will not play until later in the week, in Montreal are the Australian Open champion and Olympic bronze medalist Victoria Azarenka, Wimbledon runner-up Agnieszka Radwanska, French Open champion and Olympic silver medalist Maria Sharapova, and the U.S. Open titlist Stosur. Sharapova was a Rogers Cup runner-up in Toronto in 2009.
In the meantime Tuesday, Italian Roberta Vinci snuck past Belgian Yanina Wickmayer 6-2, 3-6, 7-5, while Austrian Tamira Paszek drubbed German Julia Goerges 6-2, 6-1 on Day 1. Paszek is rewarded with a second-round match against world No. 1 Azarenka of Belarus.
Additional opening-round wins came for Kazakhstani Ksenia Pervak, South African Chanelle Scheepers, Romanian Simona Halep, Spaniard Carla Suarez Navarro, Russian Ekaterina Makarova, Kazakhstani qualifier Sesil Karatantcheva, and Slovakian qualifier Jana Cepelova.
The 2012 Rogers Cup champion will pocket $385,000.