Sloane Stephens loses past-champions showdown at U.S. Open
NEW YORK — Angelique Kerber won a matchup of previous U.S Open champions when she beat Sloane Stephens, 5-7, 6-2, 6-3, in the third round of the U.S. Open on Friday. The reward for the 16th-seeded Kerber? A potential date with No. 3 seed and defending champion Naomi Osaka. Kerber,...