Del Potro turned in his first career two-set comeback 6-7(4), 2-6, 7-5, 6-4, 6-3, followed by a clutch 6-3, 6-4, 6-2 win for Federico Delbonis over Ivo Karlovic.

BRUSSELS (AP) Steve Darcis sent Belgium into its first Davis Cup final for more than a century by beating Federico Delbonis ... he struggled with his serve. He allowed Delbonis to level at 5-5 ...

NICE, France (AP) -- Top-seeded John Isner of the United States lost 6-4, 5-7, 7-6 (6) to Federico Delbonis of Argentina in the Open de Nice quarterfinals as both players wasted match points on ...