TORONTO, Canada - Former champion Caroline Wozniacki made a winning start to her week at the Rogers Cup with a 6-4, 6-2 win over Yulia Putintseva.

The 2010 champion in Montreal and No.15 seed in this year's draw rallied from an early deficit, as she lost serve to begin the match and trailed the Kazakh, 4-2. 

Havng not played Putintseva in two-and-a-half years, the Dane was slow to start against the World No.42, as she dropped serve in the first game of the match after holding a 30-0 lead. 

The Kazakh stayed in front with determined play, saving a break point to extend her lead to 3-1, and holding to love to lead 4-2. 

However, Wozniacki won four straight games to steal the first set, which included wining the last 10 points, and also won four straight in the second set from 2-2 to ease through to the second round in just under 90 minutes.

"I think I just started getting ahold of her serves better...and then I felt like I was in control of the point once we got into the rally, and I felt like I would win more points from the baseline," Wozniacki assessed post-match.

"That was kind of what turned it around, I feel like. I'm just happy with the win today and that I'm through to the next round."

Also the runner-up in Toronto in 2017, Wozniacki will next face the winner of a first-round match between a pair of qualifiers in Polish teenager Iga Swiatek or Aussie Ajla Tomljanovic.

"The last time I was here [in Toronto] it was really my first time I ever won a match here. So, baby steps, and I made it all the way to the finals, which was a great result," Wozniacki said.

"I'm just happy to be here and win another match here and get a good start, and we'll see how far it goes."