The 19-year-old Dayana Yastremska has made a great start in Toronto, defeating the 13th seed Johanna Konta 6-3, 6-2 in 80 minutes. The Ukrainian had the upper hand in the pivotal moments, saving four out of five break points and stealing the rival's serve four times from ten opportunities to seal the deal and march into the second round.
Konta broke first in the third game but that was all we saw from her in the opener, with Yastremska breaking back already in game four and closing the set after taking 12 of the last 14 points. The youngster grabbed breaks in games five and seven in set number two, converting the fifth match point at 5-2 to book the spot in the next round, happy with the way she performed against the better-ranked rival.
Elise Mertens took down Aliaksandra Sasnovich 3-6, 6-3, 6-1 in an hour and 50 minutes, playing better and better as the match progressed to make a winning start. The Belgian stood strong in her games, losing serve only once in the opener and delivering four breaks on the other hand to rattle off nine of the last ten games and move over the top with a rock-solid performance in the decider.
A qualifier Jennifer Brady had a great day at the office, toppling Kristina Mladenovic 6-1, 6-2 in 64 minutes, dropping just 14 points behind the initial shot and dominating on the return as well for five breaks and a safe trip into the second round.
The American found the zone right from the start, hitting strong from both wings and serve to notch four easy holds and break the French player in games four and six for a 6-1. Kristina stayed in touch until 2-2 in the second set before Brady shifted into a higher gear, seizing the last four games to race over the finish line.
The 11th seed Belinda Bencic proved to be too strong for the young Russian Anastasia Potapova, securing a 6-2, 6-1 win in 63 minutes and staying on the course for the second title here after 2015. Losing 12 points in seven service games, Belinda played well on both the first and second serve, never experiencing troubles and taking 60% of the return points to grab five breaks from ten chances, using the fact that Potapova served at only 48% and hit ten double faults.
Belinda took the opener with breaks in games one and seven, gathering the momentum and adding three breaks to her tally in set number two for a rock-solid triumph. A qualifier Marie Bouzkova overpowered the 16-year-old Leylah Fernandez 6-0, 6-1 in 62 minutes, taking the first eight games and closing the match with breaks in games five and seven in the second set for the 35th win overall in 2019.
Sofia Kenin needed an hour and 15 minutes to dismiss Su-Wei Hsieh 6-4, 6-3, getting broken three times and forging the advantage with six breaks that kept her safe throughout the encounter. Canada Open champion from 2010 Caroline Wozniacki ousted Yulia Putintseva 6-4, 6-2 in an hour and 27 minutes, facing only two break points and controlling the pace on the return for four breaks and the place in round two.
Putintseva was 4-2 in front in the opener before the Dane stole 16 of the last 18 points for a 6-4 and the momentum ahead of set number two where she also took the final four games to prevail in style.