Phelps Wins Record 18th Gold Medal in Men's 4x100 Medley Relay Final in London

USA's Michael Phelps swims the Butterfly leg of the Men's 4x100 Medley Relay Final at the Aquatics Center during the London 2012 Summer Olympics in Stratford, London on August 4, 2012. The USA team won and Phelps won his record 18th gold and 22nd Olympic Medals to end his Olympic career. UPI/Pat Benic