Switzerland produced the second shock of the Davis Cup weekend when they beat the United States 3-2 yesterday - a day after holders Spain were felled by the Netherlands. Playing in front of his Basle home crowd, Roger Federer battled past Jan-Michael Gambill 7-5 6-2 4-6 6-2 to give the Swiss an unassailable 3-1 lead and their first Davis Cup win over the competition's most successful nation.

Federer, fresh from winning his first ATP Tour title in Milan, weathered a third set comeback by Gambill. He closed out the tie with an ace and then broke into tears as the crowd gave him a standing ovation.

American Andy Roddick won the dead rubber against George Bastl. Switzerland play France in the second round after Fabrice Santoro and Arnaud Clement completed a 5-0 rout of Belgium in Ghent.

Holders Spain crashed out in Eindhoven on Saturday when defeat in the doubles for Alex Corretja and Juan Balcells gave the Dutch an unbeatable 3-0 lead. After winning the title for the first time last year, the Spanish now face the prospect of a play-off to avoid relegation from the world group.

The Netherlands' quarter-final opponents will be three times winners Germany who battled back to beat Romania 3-2 in Braunschweig.