Thomas Boyd
Jack Sock and Marin Cilic pose before their first rubber on Day 1.
Thomas Boyd
Fans fill the Tualatin Hills Tennis Center stadium during Day 1 of the Davis Cup quarterfinal.
Thomas Boyd
USTA President Katrina Adams presents longtime USTA board member Don Tisdel with a Team USA jacket during a ceremony.
Thomas Boyd
John Isner serving against Borna Coric on Day 1 of the Davis Cup quarterfinal
Thomas Boyd
Jack Sock celebrates in front of American fans on Day 1 of Davis Cup play.
Thomas Boyd
John Isner celebrates his straight-sets victory over Borna Coric.
Thomas Boyd
Croatia and Team USA line us during the national anthems.
Thomas Boyd
John Isner is congratulated by U.S. Captain Jim Courier on Day 1 of the quarterfinal.
Thomas Boyd
American fans celebrate winning the first two rubbers on Day 1.
Thomas Boyd
Players stand during the national anthem on Day 2 of the Davis Cup quarterfinal.
Thomas Boyd
John Isner and Marin Cilic shake hands after their match Sunday.
Thomas Boyd
Jack Sock hits a forehand during his reverse singles match against Borna Coric.
Thomas Boyd
Mike Bryan plays a volley against Ivan Dodig and Marin Cilic on Saturday.
Thomas Boyd
Team USA is introduced to the fans before Saturday's doubles rubber.