Olympics athletics: Sanchez storms to 400m hurdles gold
Felix Sanchez of the Dominican Republic regains the Olympic 400m hurdles title he won in 2004, with Britain's world champion Dai Greene fourth.
Sanchez ran a season's best of 47.63 seconds to finish well clear of American Michael Tinsley, with Javier Culson of Puerto Rico taking bronze.
Watch Monday's athletics on BBC Sport's interactive video player.
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