American Sofia Kenin beat former U.S. Open champion Sam Stosur 6-7 (4), 6-4, 6-2 in the final of the Guangzhou International on Saturday for her third WTA singles title of the year. Kenin won her first singles title of 2019 on the hardcourts of Hobart, Australia in January, and added her second on grass in Mallorca in June. Stosur, who won the U.S.