Ivo Karlovic beat Kei Nishikori 6-4, 6-4, 6-3 Friday to give Croatia a split against Japan in the first round of the Davis Cup. Karlovic overpowered Nishikori with 18 aces in the day's second singles in World Group play. In the first match, Japan's Go Soeda rallied past Ivan Dodig 6-7 (3), 3-6, 6-4, 6-3, 7-5. More...