U.S. team player John Isner reacts after winning his match against France's Gilles Simon in the quarterfinal of the Davis Cup between France and U.S. in Monaco on Friday, April 6, 2012.(AP Photo/Remy de la Mauviniere)

Photo by: Remy de la Mauviniere

U.S. team player John Isner reacts after winning his match against France's Gilles Simon in the quarterfinal of the Davis Cup between France and U.S. in Monaco on Friday, April 6, 2012.(AP Photo/Remy de la Mauviniere)