Having made a name for herself as a doubles specialist, Ena Shibahara has shown she also has what it takes to stand out in singles, according to Japan's Billie Jean King Cup captain Ai Sugiyama.Shibahara filled the singles spot vacated by injured former world No. 1 Naomi Osaka at the team event's finals last month in Spain, winning both of her matches against higher-ranked opponents in Japan's 2-1 first-round win over Romania and 2-1 quarterfinal loss to eventual champion Italy."She has the potential to break in the top 20 in singles," Sugiyama said of the 26-year-old. "She listens to me an…READ FULL ARTICLE
