Stephens advances, Bertens quits match in French Open

   Seventh-seeded Sloane Stephens, who grew up in Fresno, beat Sara Sorribes Tormo of Spain 6-1, 7-6 (3) today in the second round of the French Open in Paris.
   Stephens, last year's runner-up to Simona Halep, is scheduled to meet Polona Hercog of Slovenia on Friday. Hercog, who won her third career singles title in Lugano in April, outlasted Jennifer Brady of Boca Raton, Fla., 6-3, 6-7 (8), 6-4. Brady swept the singles and doubles titles in the $25,000 Redding (Calif.) Challenger in 2014.
   Hercog, ranked 71st, has never won a set against Stephens, ranked seventh, in three career matches. Stephens won their first meeting 6-1, 6-3 in the second round of the 2014 French Open and their last encounter 6-2, 7-6 (4) three weeks ago in the first round on clay in Madrid.
   Fourth-seeded Kiki Bertens, the Madrid champion, retired with a gastrointestinal illness while trailing Viktoria Kuzmova of Slovakia 1-3.
   In the first round of women's doubles, Raquel Atawo (Cal, 2001-04) of Sacramento and Katarina Srebotnik of Slovenia defeated Viktorija Golubic of Switzerland and Karolina Muchova of the Czech Republic 7-6 (8), 7-5.
   Amanda Anisimova of Aventura, Fla., and Xenia Knoll of Switzerland beat Kaitlyn Christian from Orange in Southern California and Giuliana Olmos, a product of Fremont in the San Francisco Bay Area who plays for Mexico, 7-5, 4-6, 6-3.
   Third-seeded Hsieh Su-Wei of Chinese Taipei and Barbora Strycova of the Czech Republic demolished Asia Muhammad of Las Vegas and Maria Sanchez, who was born and raised in Modesto, 6-0, 6-1 in 48 minutes.
   Also, Ricardas Berankis of Lithuania and Yoshihito Nishioka of Japan defeated Mackenzie McDonald, a product of Piedmont in the Bay Area, and Reilly Opelka of West Palm Beach, Fla., 3-0, retired in the opening round of men's doubles.
   Maria Jose Martinez Sanchez of Spain and Neal Skupski of Great Britain edged Eri Hozumi and Ben McLachlan (Cal, 2011-14) of Japan 6-1, 3-6 [10-6] in the first round of mixed doubles.