Rafael Nadal, Martina Hingis and Kim Clijsters's second round matches have been postponed until Friday after rain caused two hours of play to be lost at the French Open, organisers said on Thursday.

• Images from day four

Defending champion Nadal will play American lucky loser Kevin Kim.

Former number one Martina Hingis of Switzerland will face Zuzana Ondraskova of the Czech Republic while Belgian second seed Kim Clijsters will meet Spain's Conchita Martinez Granados.

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