Tokyo Open: Martic books spot in quarter-finals

Croat Petra Martic advanced to the last 8 of the Tokyo Open by beating Czech Karolina Pliskova, the No 6 seed, 6-3, 6-4 at the Ariake Coliseum and Ariake Tennis Forest Park on Thursday night. Martic, ranked No 46, will face Chinese Shuai Zhang next. Ahead of her victory, the Croat won against Japanese qualifier Rina Saigo (6-1, 6-1). Pliskova, ranked No 20, defeated Bulgari