Learner Tien is an American professional tennis player. He has a career-high ATP singles ranking of world No. 36 achieved on 29 September 2025 and a doubles ranking of No. 343 achieved on 18 August 2025. From Wikipedia
Testing conditions and tight turnarounds are defining the Asian swing, with Naomi Osaka knocked out in Wuhan and Novak Djokovic grinding through in Shanghai.
