Karolina Pliskova began her run as world No. 1 on a positive note, beating Russian Anastasia Pavlyuchenkova 6-3, 6-3 on Wednesday to reach the third round of the Rogers Cup.
The 25-year-old Czech, who had a first-round bye, extended her winning streak over the 19th-ranked player to five matches. She earned the No. 1 ranking when Johanna Konta beat Romania's Simona Halep in the quarterfinals at Wimbledon.
"I had a little bit (of nerves) before my match because I really wanted to win this one," Pliskova said. "Also, I knew I have a good record against her. So I just knew if I play solid and OK I can win it."
Halep, now ranked second and the defending...