FRIBOURG, Switzerland, Feb. 12 (UPI) -- Ryan Harrison and John Isner had straight-set wins Sunday that completed a 5-0 U.S. sweep over Switzerland in a Davis Cup first-round series.
Harrison defeated Michael Lammer 7-6 (7-0), 7-6 (7-4) and Isner beat Marco Chiudinelli 6-3, 6-4. Sunday's singles matches were cut to best-of-three sets since the Americans had wrapped up the series Saturday.