Order of play on the main showcourts on the sixth day of the French Open on Friday (play begins at 0900 GMT unless specified, prefix number denotes seeding):

COURT PHILIPPE CHATRIER (1000 GMT)

15-Victoria Azarenka (Belarus) v 23-Madison Keys (U.S.)

6-Alexander Zverev (Germany) v Laslo Djere (Serbia)

7-Serena Williams (U.S.) v Danielle Collins (U.S.)

5-Stefanos Tsitsipas (Greece) v 31-John Isner (U.S.)

COURT SUZANNE LENGLEN

21-Elena Rybakina (Kazakhstan) v Elena Vesnina (Russia)

27-Fabio Fognini (Italy) v Federico Delbonis (Argentina)

32-Reilly Opelka (U.S.) v 2-Daniil Medvedev (Russia)

Polona Hercog (Slovenia) v 20-Marketa Vondrousova (Czech Republic)

COURT SIMONNE MATHIEU

31-Anastasia Pavlyuchenkova (Russia) v 3-Aryna Sabalenka (Belarus)

Kei Nishikori (Japan) v Henri Laaksonen (Switzerland)

Steve Johnson (U.S.) v 12-Pablo Carreno Busta (Spain)

Paula Badosa (Spain) v Ana Bogdan (Romania)