It has since been broken by quarterbacks Cam Newton and Robert Griffin III respectively in 2011 and 2012 .
Young held the then NFL record for rushing yards by a rookie quarterback with 552 , breaking the old record of 408 yards set by Bobby Douglass in 1969 .
NFL has since been broken by quarterbacks Cam Newton and Robert Griffin III respectively in 2011 and 2012 .
Young held the then NFL record for rushing yards by a rookie quarterback with 552 , breaking the old record of 408 yards set by Bobby Douglass in 1969 .