The 26-year-old from Shanghai -- ranked 67th in the world -- produced the match of his life to defeat last year's US Open finalist 6-4, 5-7, 6-2, 0-6, 6-2 in 3hr 19min.
The 26-year-old from Shanghai -- ranked 67th in the world -- produced the match of his life to defeat last year's US Open finalist 6-4, 5-7, 6-2, 0-6, 6-2 in 3hr 19min.
