Sprinter who won gold in the women's 200 meter race and 4x100-meter relay at the 2004 Olympics and in the women's 200 meter race at the 2008 Olympics.
She attended the University of Arkansas.
She won Olympic bronze in the 100 meter race in 2004 and 2012.
She was born to Pamella Bailey and Cecil Campbell.
American sprinter Carmelita Jeter edged her by one spot to take silver in the 100 meter race at the 2012 Olympics.