Womens 4x100m Relay Final WC Daegu 2011

USA win women s 4x100 metre relay world title from Daegu, South Korea September 4, 2011. The US team of Bianca Knight, Allyson Felix, Marshevet Myers and Carmelita Jeter won the women s 4x100m relay title at the world championships on Sunday. The US quartet clocked with Jamaica taking silver and Ukraine claiming bronze