After two days of almost incessant rain, the covers have come off the courts at the French Open and the skies, while still thick with clouds, have stopped dropping rain. Serena and Venus Williams play first on Court Philippe Chatrier and Court Suzanne Lenglen, respectively, in fourth-round matches carried over from Monday, when rain washed out the whole day of play for the first time in 16 years. Defending champion Serena plays No. 18 Elina Svitolina. Venus takes on No. 8 Timea Bacsinszky. Because of scheduling problems, after rain continued for most of Tuesday, too, matches are also spread on other courts. Kiki Bertens vs. No. 15 Madison Keys is on Court 1; No. 12 Carla Suarez Navarro vs. Yulia Putintseva of Ukraine is on Court 2. (For more sportsnews andupdates, followAhramOnlineSportson Twitter at@AO_Sportsand onFacebookatAhramOnlineSports.) http://english.ahram.org.eg/News/219073.aspx