Angelique Kerber falls to Naomi Osaka in US Open first round

In the greatest victory of her young career, Japan's Naomi Osaka defeated defending champion Angelique Kerber at the US Open on Tuesday. The 19-year-old dictated play and showed no fear against Kerber, coming through 6-3, 6-1 for her first-ever win against a top-ten player. (Courtesy: SNTV)