French Open Day 4 order of play: Rafael Nadal and Roger Federer among seven players to watch - in pictures

Defending and 11-time men's champion headlines the fourth day of action at Roland Garros

Day 4 at the French Open sees the men's and women's singles tournaments enter the second round and there are a hots of top stars in action on Wednesday.

Ahead of the start of play, Jon Turner has selected seven players to watch in the photo gallery above.

Here is Wednesday's order of play for the stadium courts. Numbers denote seedings:

Court Philippe-Chatrier

Play starts at 1pm

7-Sloane Stephens (US) v Sara Sorribes Tormo (Spain)

7-Kei Nishikori (Japan) v Jo-Wilfried Tsonga (France)

Oscar Otte (Germany) v 3-Roger Federer (Switzerland)

Viktoria Kuzmova (Slovakia) v 4-Kiki Bertens (Netherlands)

Court Suzanne-Lenglen

Play starts at 1pm

Kateryna Kozlova (Ukraine) v 9-Elina Svitolina (Ukraine)

Yannick Maden (Germany) v 2-Rafa Nadal (Spain)

31-Petra Martic (Croatia) v Kristina Mladenovic (France)

Benoit Paire (France) v Pierre-Hugues Herbert (France)

Court Simonne-Mathieu

Play starts at 1pm

6-Stefanos Tsitsipas (Greece) v Hugo Dellien (Bolivia)

Kristina Kucova (Slovakia) v 2-Karolina Pliskova (Czech Republic)

Grigor Dimitrov (Bulgaria) v 11-Marin Cilic (Croatia)

15-Belinda Bencic (Switzerland) v Laura Siegemund (Germany)

EDITOR'S PICKS
NEWSLETTERS