Powerhouse tennis doubles team Bob and Mike Bryan beat Yves Allegro and Stanislas Wawrinka give the United States a 2-1 lead over Switzerland in the Davis Cup.
The top-ranked brothers defeated the Swiss 6-3, 6-4, 3-6, 7-6 on Saturday in Birmingham, Alabama.
The Swiss team is without world number two Roger Federer, who is out with a bad back.
Andy Roddick will try to clinch the tie against Wawrinka later on Sunday in the first reverse singles and send the US on to the quarterfinals.
If not, James Blake will try to do it against Marco Chiudinelli in the final match. Blake lost the opener to Wawrinka while Roddick beat Chiudinelli in straight sets on Friday.
The winner will play at Croatia, a 3-0 winner over Chile, on July 8-10.