Bob and Mike Bryan kept the United States alive against Spain, winning their doubles match Saturday in four sets to draw the Americans within 2-1 in a best-of-five Davis Cup quarterfinal.
Spain had won both singles matches Friday to take a 2-1 lead, with Feliciano Lopez beating Mardy Fish in five sets and David Ferrer knocking off Andy Roddick in three.
But the Bryans upped their Davis Cup record to 18-2 despite losing the first set in a tiebreaker. They beat Marcel Granollers and Fernando Verdasco 6-7 (3-7), 6-4, 6-4, 6-4 in 2 hours and 41 minutes.
So the tie comes down to Sunday's reverse singles, which currently have Fish meeting Ferrer and Roddick battling Lopez.
The U.S. is captained by former world No. 1 star Jim Courier, while team Spain is led by former French Open champ Albert Costa. The Spanish are competing without world No. 2 star Rafael Nadal, who decided against playing this week.
The Americans are 5-4 all-time versus the Spaniards, including a perfect 4-0 on home soil.
The U.S. boasts a record 32 Davis Cup titles, while powerful Spain has won four of the last 11 championships. The Spaniards beat the Americans in the 2004 World Group finale.
The winner in Texas will face France in the semifinals in September.