NEW YORK, NY, USA – A battle of elite southpaws highlights the Day 7 schedule in New York. We preview Sunday’s Round of 16 tilts at wtatennis.com.

Sunday
Round of 16

[2] Angelique Kerber (GER #2) vs. [14] Petra Kvitova (CZE #16)
Head-to-head: Tied, 4-4
Key Stat: Kerber will ascend to the No.1 ranking if Serena Williams does not reach the semifinals in New York.

Two talented southpaws and former Grand Slam champions will meet in one of the most heavily anticipated matches of the tournament on Day 7. Angelique Kerber is in hot pursuit of the No.1 ranking and she has been fit and focused in New York, dropping just ten games in three rounds. But Sunday’s task promises to be far more daunting than her first three challenges. Kerber will have to square off against a menacing lefty who is finally learning how to excel at the US Open. Kerber has faced Petra Kvitova eight times before, with the pair splitting the pot, but never have they met at a Grand Slam. “Playing against lefties is always a little bit different,” Kerber said on Friday after racing past 17-year-old American CiCi Bellis, 6-1, 6-1. “I played a lot of matches against Petra and we had great matches in the past, so I think it will be a good match. I will try to go for it, go out there to win the match.” Kerber has won 15 of 18 this hardcourt season and has every reason to like her chances on Sunday. “I’m confident. I will go out there and try to enjoy every moment here,” she said. But Kvitova is a confident player herself. A quarterfinalist for the first time at the US Open last season, Kvitova says she is finally starting to understand how to harness the energy of the Big Apple. “I feel that the crowd, it’s always, you know, cheering,” she said after defeating Elina Svitolina on Day 5. “I think finally I find the way how I should take the energy from them as well.”

Pick: Kvitova in three

[7] Roberta Vinci (ITA #8) vs. Lesia Tsurenko (UKR #99)
Head-to-head: Vinci leads, 1-0
Key Stat: Tsurenko is the lowest-ranked player left in the draw.

Roberta Vinci has been here before. The Italian who stunned Serena Williams in last year’s semifinals clearly is having a love affair with the US Open and it shows in the form of nine wins in her last ten matches in Queens. Lesia Tsurenko, on the other hand, is into uncharted waters. The Ukrainian reached the second week of a major for the first time on Friday when she shocked No.12-seeded Dominika Cibulkova in three sets. Tsurenko, playing at her lowest ranking in two years, entered the event with a four-match losing streak at majors and a lifetime 8-20 record at the Grand Slam level. But she’s a battler, and she has five career Top 10 wins to her name as well. But can Tsurenko take the play to an in-form Vinci that is playing her best tennis of the season? The Italian had only won five of her last 15 heading into New York, but she is clearly resonating with the place of her greatest Grand Slam achievement.

Pick: Vinci in two

[8] Madison Keys (USA #9) vs. Caroline Wozniacki (DEN #74)
Head-to-head: First meeting
Key Stat: Keys owns a 14-4 record in three-setters in 2016.

Fresh off the greatest comeback of her young career, 21-year-old American Madison Keys will set her sights on reaching the US Open quarterfinals for the first time. But standing in her way is a suddenly resurgent two-time US Open runner-up who has always thrived in New York. Caroline Wozniacki is finally finding her form after a long and unspectacular season, and she will be a very dangerous opponent for the No.8-seeded Keys. But Keys is confident and feeling lucky after narrowly escaping defeat in two of her first three matches. “I think the biggest thing is I’m never giving up and I’m fighting to the very end,” Keys said after battling back from 5-1 down in the third set to defeat Japan’s Naomi Osaka on Day 5. “That’s something to pat myself on the back for.” Wozniacki has had to fight through her fair share of injuries in 2016, but she’s hoping it’s all behind her. “Every time I have come back something else has been hurting,” she said. “Knock on wood, right now I’m feeling good.” Does she feel good enough to deconstruct Keys’ lethal game or will it be the young American who moves on?

Pick: Keys in three

[13] Johanna Konta (GBR #14) vs. Anastasija Sevastova (LAT #48)
Head-to-head: Konta leads, 1-0
Key Stat: Konta owns a 27-10 hardcourt record in 2016.

The first British player to hold a Top 20 ranking in nearly 30 years will take a shot at reaching her first US Open quarterfinal on Sunday against an unlikely opponent. Johanna Konta and Anastasija Sevastova will meet for the first time in a main draw and the second time overall. Konta will be the favorite based on her higher ranking and impressive hardcourt record this season, but Sevastova is putting the cherry on top of a solid season by making her first run to the second week of a major in over five years. The Latvian No.1 shocked Garbiñe Muguruza on Day 3 and on Friday she won for the first time in four meetings against Kateryna Bondarenko. Konta, who nearly had to retire due to heat-related exhaustion in her second round win over Tsvetana Pironkova, rebounded smartly on Friday by trouncing Belinda Bencic, 6-2, 6-1. Having recovered fully, Konta looks set to make another deep run at a hardcourt major. Is there anything Sevastova can do to stop her?

Pick: Konta in three

By the Numbers:
1-0 – Wozniacki’s record against the Top 10 this season. The Dane defeated No.10 Svetlana Kuznetsova in the second round.
36-11 – Kvitova’s career record against left-handers. Kerber’s career record against lefties is 26-15.
1 – Number of players in Top 10 to have yet to play in a Grand Slam final (Madison Keys).