Article Photos: Serena Williams wins US Open quarterfinal 6-0, 6-0 41/46

Stanislas Wawrinka, of Switzerland, lies on the court after slipping while reaching for a shot hit by Tomas Berdych, of the Czech Republic, during the fourth round of the U.S. Open tennis tournament, Tuesday, Sept. 3, 2013, in New York. (AP Photo/David Goldman)