Doubles’ win by Sock, Harrison puts US in Davis Cup semis
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