Doubles win by Sock, Harrison puts U.S. in Davis Cup semifinals

Nashville, Tenn. • Jack Sock and Ryan Harrison put the United States in the Davis Cup semifinals for the first time since 2012 by beating Sander Gille and Joran Vliegen 5-7, 7-6 (1), 7-6 (3), 6-4 Saturday to finish off an American sweep.The United States now will play either Croatia or Kazakhstan in the semifinals Sept. 14-16.John Isner and Sam Querrey set up the doubles match for the clincher by winning both their singles matches Friday at the Curb Events Center at Belmont University. Sock