Cilic beats Isner to keep Croatia alive in Davis Cup

Former US Open champion Marin Cilic kept Croatia alive in their Davis Cup World Group quarter-final tie against the United States on Sunday with a three-set win over John Isner. Cilic's 7-6 (11/9), 6-3, 6-4 victory pulled Croatia level at 2-2 in the best-of-five match hardcourt tie in Portland, Oregon. Sock rallied from two-sets-to-love down to stun Cilic 4-6, 3-6, 6-3, 6-4, 6-4 in the opening match on Friday.