By Claire Rivé, Contributing Reporter
RIO DE JANEIRO, BRAZIL – Rafael Nadal was all business on Sunday night as he beat Ukrainian Alexandr Dolgopolov in straight sets (6-3, 7-6) to become the first Rio Open men's tennis champion. Japan’s Kurumi Nara beat top seed Klara Zakopalova (6-1, 4-6, 6-1) on Sunday to claim the women’s trophy and pick up her first WTA title.
Dolgopolov’s surprise victory over second seed David Ferrer in . . .