World No. 7 Kei Nishikori's hopes of a second ATP title this season were dashed by Stan Wawrinka in the semifinals of the ABN AMRO World Tennis Tournament on Saturday.The top-seeded Japanese, who won his first title in nearly three years at the Brisbane International last month, suffered a 6-2, 4-6, 6-4 defeat at the hands of the former world No. 3, who is on the comeback trial after two operations on his left knee in August 2017.The three-time Grand Slam champion, now ranked 68th, fired eight aces and converted five break points during a triumph that took 2 hours, 13 minutes."I started out…READ FULL ARTICLE