The French Open semi-final lineups will be completed overnight, but it seems unlikely there will be another upset resembling Jo-Wilfried Tsonga's straight sets victory over Roger Federer.
The sixth-seeded Frenchman reached his first Roland Garros semi-final with a straight sets victory over the 17-time grand slam winner.
Third seed and defending champion Rafa Nadal plays Stanislas Wawrinka overnight, while top seed Novak Djokovic plays Tommy Haas.
In the two remaining women's quarter-finals, second seed and defending champion Maria Sharapova plays Jelena Jankovic and third seed Victoria Azarenka plays Maria Kirilenko.
The New Zealander Marina Erakovic and doubles partner Cara Black of Zimbabwe also play their quarter-final against the Czech second seeds, Andrea Hlavackova and Lucie Hradecka - the 2011 champions.