Nick Kyrgios defeated Sam Querrey, a San Francisco native, 7-6 (4), 6-3, 6-4 today to give host Australia an insurmountable 3-1 lead over the United States in the Davis Cup quarterfinals.
Querrey led 3-1 in the third set on a hardcourt in Brisbane.
Australia likely will play Belgium, which leads visiting Italy 2-1 in the best-of-five-match series, in September's semifinals. Belgium would host again with a victory, but if Italy rallies to win, it will travel to Australia.
The United States and Australia are the two most celebrated nations in Davis Cup history with 32 and 28 titles, respectively. However, the Americans haven't won the Cup since 2007, and the Aussies haven't done so since 2003.