The chiseled Dexter Manley was a threat to sack the quarterback on every down .
The chiseled Dexter Manley spent four seasons playing football at Oklahoma State University but never learned to read until he was 30 .
The chiseled Dexter Manley , who spent four seasons playing football at Oklahoma State University but never learned to read until he was 30 , was a threat to sack the quarterback on every down .