Results from the WTA Qatar Open in Doha on Tuesday (x denotes seeding): 1st rd Misaki Doi (JPN) bt Zheng Saisai (CHN) 6-4, 6-3 Laura Siegemund (GER) bt Elena Rybakina (KAZ) 7-6 (9/7), 7-6 (7/5) Madison Keys (USA) bt Belinda Bencic (SUI x6) 6-4, 6-1 Anastasia Pavlyuchenkova (RUS) bt Kristyna Pliskova (CZE) 6-2, 6-3 Jessica Pegula (USA) bt Wang Qiang (CHN) 6-3, 6-1 Ons Jabeur (TUN) bt Anna Blinkova (RUS) 6-2, 6-2 afp