Results from Sunday's second day of the ATP and WTA Western and Southern Open at New York (x denotes seed): Men 1st rd Tennys Sandgren (USA) bt Lorenzo Sonego (ITA) 6-3, 7-6 (9/7) Karen Khachanov (RUS x11) bt Alexander Bublik (KAZ) 6-4, 6-4 Diego Schwartzman (ARG x9) bt Casper Ruud (NOR) 7-6 (7/2), 6-3 Women 1st rd Elise Mertens (BEL x14) bt Rebecca Peterson (SWE) 6-0, 6-2 Catherine Bellis (USA) bt Océane Dodin (FRA) 6-2, 3-6, 7-6 (7/1) Anett Kontaveit (EST x12) bt Darya Kasatkina (RUS) 6-3, 6-1 Vera Zvonareva (RUS) bt Magda Linette (POL) 1-6, 6-3, 6-1 Arantxa Rus (NED) bt Alison Van Uytvanck (BEL) 6-2, 6-3 afp