The 19-year-old Tien, who has risen to 122 in the world after starting the year at a lowly 453, shocked his 20th-ranked French opponent Arthur Fils 4-2, 4-2, 3-4 (4/7), 4-3 (7/5).
The 19-year-old Tien, who has risen to 122 in the world after starting the year at a lowly 453, shocked his 20th-ranked French opponent Arthur Fils 4-2, 4-2, 3-4 (4/7), 4-3 (7/5).
