NFL running back best known for his years with the Dallas Cowboys and Buffalo Bills. Prior to his NFL career, he was a standout player for the Georgia Tech Yellowjackets, becoming a First Team All-ACC selection in 2007.
He attended Lovejoy High School in Georgia and began his college career as a redshirt freshman in 2003.
He set a Yellowjackets record by posting 7 consecutive 100-yard rushing performances as a junior in 2006.
His mother is Rosa Hamm.
He was the backup to future NFL MVP Adrian Peterson at Georgia Tech.