4.33 burner Dorsett broke off a 39 - yard gain in the Colts ' third preseason game .
4.33 burner Dorsett has delivered gains of 51 , 33 , and 30 yards in the first two weeks .
4.33 burner Dorsett broke off a 39 - yard gain in the Colts ' third preseason game and has delivered gains of 51 , 33 , and 30 yards in the first two weeks .