Olympic swimming: Phelps wins record 19th Olympic medal
Michael Phelps and the United States win gold in the 4x200m relay at London 2012, a victory which takes Phelps's personal Olympic medal total to a record 19.
Earlier in Tuesday's evening session, Phelps was beaten by South African Chad le Clos in the 200m butterfly, but won silver to draw level with former Russian gymnast Larisa Latynina's total of 18 medals.
Watch the the final on BBC Sport's Interactive Video Player.
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