Members of the U.S. men's 4 x 100m medley relay swimming team leave the pool after they were disqualified during their heat at the World Aquatics Championship in Melbourne April 1, 2007. The U.S. team, consisting of Scott Usher (L), Neil Walker (2nd L), Ryan Lochte (3rd L) and Ian Crocker (bottom R), was disqualified due to an early start by Crocker. REUTERS/David Callow (AUSTRALIA)