French Open players to watch: Roger Federer and Rafael Nadal headline Day 8

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  Roger Federer. It’s been smooth sailing for the Swiss third seed in Paris so far, with three straight sets wins over limited opponents. The 2009 champion faces a step up in quality when he faces Leonardo Mayer in the second match in Court Philippe Chatrier. The Argentine has been impressive so far in wins over Jiri Vesely, Diego Schwartzman and Nicolas Mahut. If Mayer produces his best this should be an entertaining match, but Federer will be too good. AFP

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  Stan Wawrinka. The 2015 champion has looked close to his best in Paris after his slow climb up the rankings following a serious knee injury. The Swiss contests the biggest men's match of the day against Greek sixth seed Stefanos Tsitsipas in the third match on Court Suzanne Lenglen. A difficult match to call, but a contest between these two sublime shotmakers should provide fireworks. Getty Images

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  Rafael Nadal. The Spanish second seed has looked typically ruthless during the early stages at Roland Garros. He did drop a set in his last outing but it came against an accomplished player in David Goffin. The defending and 11-time champion faces world No 78 Juan Londero in the third match on Court Philippe Chatrier. The Argentine has done well to reach this stage, with wins over 16th seed Nikoloz Basilashvili, Richard Gasquet, and Corentin Moutet – but this is where his run ends. Getty Images

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  Marketa Vondrousova. With second seed Karolina Pliskova suffering an early exit, this section of the draw has opened wide up. A leading contender to take advantage is 19-year-old Czech Vondrousova. She has looked at ease to reach the fourth round, and faces another step up against 12th seed Anastasija Sevastova in the first match on Court Suzanne Lenglen. Sevastova outlasted Elise Mertens in a marathon match in the last round so fatigue may play a part. Vondrousova has the form to continue her run in Paris. EPA

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  Johanna Konta. The British No 1’s revival has been impressive, especially as it has come on the clay – traditionally her weakest surface. After reaching the Italian Open final, 26th seed Konta has carried that momentum to Roland Garros to reach the fourth round and a showdown with 23rd seed Donna Vekic in the second match on Court Suzanne Lenglen. A close match to call, but Konta has the form and confidence to win. AP Photo

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  Sloane Stephens. Last year’s finalist contests the biggest women's match of the day when she takes on 2016 champion and former world No 1 Garbine Muguruza in the final match on Court Philippe Chatrier. Stephens has quietly built up some form in recent weeks and has performed well so far in Paris. Likewise Muguruza, whose win in the third round over Elina Svitolina proved that she still has the game to trouble the best. Another close match in store to end the day, but Stephens should shade this. AP Photo

The 2019 French Open enters the second week as the men's and women's singles kick off the last-16 at Roland Garros.

There is plenty of star power on display in Paris on Sunday, including four current or former champions.

Ahead of the start of Week 2, check out the photo gallery above for the five players to watch on Sunday. Below is the stadium courts order of play.

Court Philippe-Chatrier

Play starts at 1pm UAE time

Kaia Kanepi (Estonia) v 31-Petra Martic (Croatia)

Leonardo Mayer (Argentina) v 3-Roger Federer (Switzerland)

Juan Ignacio Londero (Argentina) v 2-Rafa Nadal (Spain)

7-Sloane Stephens (U.S.) v 19-Garbine Muguruza (Spain)

Court Suzanne-Lenglen

Play starts at 1pm UAE time

Marketa Vondrousova (Czech Republic) v 12-Anastasija Sevastova (Latvia)

23-Donna Vekic (Croatia) v 26-Johanna Konta (Britain)

6-Stefanos Tsitsipas (Greece) v 24-Stan Wawrinka (Switzerland)

7-Kei Nishikori (Japan) v Benoit Paire (France)