Paris - Czech fourth seed Petra Kvitova became the latest big name to be knocked out of the French Open on Monday, going down in three sets to Switzerland's Timea Bacsinszky in the fourth round.
The 23rd seed fought back from a set down to win 2-6, 6-0, 6-3 in a ding-dong encounter on Court Suzanne Lenglen that finished in fading light after 21:00 local time.
Bacsinszky goes into her first Grand Slam quarter-final, where she will meet unseeded Belgian Alison Van Uytvanck.
Results from the ninth day of the French Open at Roland Garros on Monday (x denotes seeded player):
Men
Fourth round
Novak Djokovic (SRB x1) bt Richard Gasquet (FRA x20) 6-1, 6-2, 6-3
Rafael Nadal (ESP x6) bt Jack Sock (USA) 6-3, 6-1, 5-7, 6-2
Andy Murray (GBR) bt Jrmy Chardy (FRA) 6-4, 3-6, 6-3, 6-2
David Ferrer (ESP x7) bt Marin Cilic (CRO x9) 6-2, 6-2, 6-4
Roger Federer (SUI x2) bt Gael Monfils (FRA x13) 6-3, 4-6, 6-4, 6-1
Women
Fourth round
Serena Williams (USA x1) bt Sloane Stephens (USA) 1-6, 7-5, 6-3
Sara Errani (ITA x17) bt Julia Goerges (GER) 6-2, 6-2
Timea Bacsinszky (SUI x23) bt Petra Kvitova (CZE x4) 2-6, 6-0, 6-3
Alison Van Uytvanck (BEL) bt Andreea Mitu (ROM) 6-1, 6-3
Garbine Muguruza (ESP x21) bt Flavia Pennetta (ITA x28) 6-3, 6-4
Lucie Safarova (CZE x13) bt Maria Sharapova (RUS x2) 7-6 (7/3), 6-4