Britain's Andy Murray hits a backhand shot during a match against United States' Sam Querrey at the Davis Cup tennis matches on Sunday, Feb. 2, 2014, in San Diego. (AP Photo/Denis Poroy)
Britain's Andy Murray and United States' San Querry play during the Davis Cup tennis matches held at Petco Park, Sunday, Feb. 2, 2014, in San Diego. (AP Photo/Denis Poroy)
Britain's Andy Murray, right, shakes hands with United States' Sam Querrey, left, after defeating Querrey at the Davis Cup tennis matches on Sunday, Feb. 2, 2014, in San Diego. (AP Photo/Denis Poroy)
Britain's Andy Murray celebrates after winning his a match against United States' Sam Querrey at the Davis Cup tennis matches on Sunday, Feb. 2, 2014, in San Diego. (AP Photo/Denis Poroy)