No.1 seed Naomi Osaka has played Katerina Siniakova once before, in the first round of Doha last year. The Japanese player won that match 6-4, 6-0. Siniakova owns four career Top 10 wins, including over Simona Halep in the second round of Shenzhen in 2017 and Caroline Wozniacki in the 2017 Bastad final, but an upset of Osaka would be her first Top 3 win.

Defending champion Simona Halep has lost just one set to No.27 seed Lesia Tsurenko in seven previous meetings since their first encounter in a 2009 ITF W25 tournament in Opole. That was in their second-round match at Wimbledon 2014, their fourth match, which the Romanian won 6-3, 4-6, 6-4. Halep has already defeated the Ukrainian twice in 2019 - 6-2, 6-3 in the second round of Doha in February and 6-3, 7-5 in the third round of Dubai the following week.

A first-time Grand Slam quarterfinalist is guaranteed from the section of the draw vacated by Petra Kvitova, who withdrew with an arm injury before playing her first-round match; the contenders are Amanda Anisimova, Irina-Camelia Begu, Ekaterina Alexandrova and Aliona Bolsova. Anisimova and Begu, who play each other, have both reached the fourth round of a major before, the American at the Australian Open in January and the Romanian at the 2015 Australian Open and Roland Garros 2016, while Alexandrova and Bolsova are playing the third round of a major for the first time (indeed, this tournament is Bolsova's Grand Slam main draw debut). Both match-ups are first-time encounters.

Four former Roland Garros semifinalists remain in the top half of the draw: three-time champion Serena Williams, who has reached the last four here on five occasions (2002-03 and 2013-15); defending champion Simona Halep, who also reached the 2014 and 2017 finals; 2014 semifinalist Andrea Petkovic and 2018 semifinalist Madison Keys.

Amanda Anisimova is the only 2019 red clay titlist remaining in the top half of the draw (joining Istanbul winner Petra Martic in the bottom half): the American won her maiden trophy in Bogota in April. In addition, Madison Keys won Charleston on green clay in April.

Victoria Azarenka made the second week of Roland Garros twice as a teenager, reaching the fourth round in 2008 (pictured) and the quarterfinals in 2009 (Getty)

17-year-old Amanda Anisimova and 18-year-old Iga Swiatek - last year's girls' doubles champion alongside Catherine McNally - are both bidding to join 19-year-old Marketa Vondrousova in the fourth round as representatives of youth. The last time two teenagers made it to the second week in Paris was 2009 (19-year-olds Victoria Azarenka and Sorana Cirstea); the last time more than two teenagers played the fourth round here was 2008 (18-year-olds Azarenka and Petra Kvitova, and 19-year-olds Carla Suárez Navarro and Agnieszka Radwanska).

Top seed Naomi Osaka would be the first Japanese player to make the fourth round at Roland Garros since Shinobu Asagoe in 2004 with a win over Katerina Siniakova. Osaka is guaranteed to remain World No.1 after Roland Garros following World No.2 Karolina Pliskova's third-round exit to Petra Martic.

Former World No.9 Andrea Petkovic did not score a Top 10 win between February 2016 and July 2018, but a defeat of No.8 seed Ashleigh Barty would be her third since then, following her upsets of Sloane Stephens in the second round of Washington, DC and Julia Goerges in the first round of Linz.

Monica Puig made the third round of Roland Garros on her Grand Slam debut in 2013, and followed that up by reaching the fourth round of Wimbledon a month later - but since then, has not made the second week of any major. The Puerto Rican's third-round showing this week is already her best at a Grand Slam since progressing to this stage at Roland Garros 2016.

Anna Blinkova and Aliona Bolsova are the only two qualifiers remaining in the draw. The last qualifier to reach the fourth round of Roland Garros was Petra Martic in 2017; the last time two qualifiers both reached that stage here was in 2000, when Rossana de los Ríos and Marta Marrero faced each other in that round, with Marrero progressing to the quarterfinals.



For full order of play, visit rolandgarros.com.


A comeback or a choke? Anna Blinkova's second-round upset of Caroline Garcia was a bit of both, writes Mert Ertunga in his analysis of the match at Mert's Tennis Desk.

Amanda Anisimova, Iga Swiatek and Marketa Vondrousova are the new teen queens of the WTA, writes Alex Sharp for rolandgarros.com.

'Who doesn't love dropshots?' - Spectacular Sevastova saves five match points against Mertens in Paris classic