Women's 4x100m Relay - Athletics | London 2012 Highlights
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Women's 4x100m Relay - Athletics | London 2012 Highlights

Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter raced away from Jamaica to take gold for the United States in a world record time...

Women's 4x100m Relay - Athletics | London 2012 Highlights

Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter raced away from Jamaica to take gold for the United States in a world record time...