World number one Novak Djokovic lost the first set to Roberto Bautista Agut before rain returned to again delay play at the French Open.
Spain’s Bautista Agut, the 14th seed, led Serb Djokovic 6-3 when their fourth-round match was halted in Paris.
Second seed Agnieszka Radwanska also struggled in the conditions, losing six straight games as Tsvetana Pironkova levelled their match at 2-6 6-3.
Monday saw the first washout at Roland Garros since 2000.
Britain’s Andy Murray faces Richard Gasquet in the first quarter-final, but his match follows both Djokovic’s and defending champion Serena Williams’s meeting with Elina Svitolina on Court Philippe Chatrier.