Ly Hoang Nam through second round at Thailand F5 Futures.
Nam, who is the No 3 seed, came from behind to win 5-7, 6-2, 7-6 (6) against his unseeded rival from Japan in the men’s singles event.
The Vietnamese will next play Karunuday Singh of India, who beat China’s Li Yuanfeng 3-6, 6-2, 6-4.
Nam and his partner Nguyen Hoang Thien will also play their quarterfinal match today against Lozenzon Frigerio of Italy and Sami Reinwein of Germany.
VNS