Belgian David Goffin and Latvian Ernests Gulbis had been expected to open proceedings on Court Philippe Chatrier but could be in for a long day in the locker room with rain forecast for much of the day.
Rising Austrian talent Dominic Thiem is scheduled to face Marcel Granollers, who got a walkover into the fourth round after his more celebrated compatriot, nine-times champion Rafael Nadal, withdrew last week with a wrist injury.
World number ones Novak Djokovic and Serena Williams are also expected on court later in the day, weather permitting.
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(Reporting by Pritha Sarkar, editing by John Stonestreet)
