5. Cookie Gilchrist (three teams; 1962-67). At 252 pounds, he was the first of the superheavyweights when he entered the AFL in 1962 with the Bills. When aroused, he was frightening.
6. Larry Csonka ( Miami Dolphins, New York Giants; 1968-74, 1976-79). Best playing weight: 238. Most impressive talent: the ability to get low and tunnel under would-be tacklers.
7. John Riggins ( New York Jets, Washington Redskins; 1971-79, 1981-85). He began his career as a 230-pound halfback-fullback type with niftiness and moves, and ended it as the 244-pound Diesel, one of the greatest short-yardage runners in history.
8. Ernie Nevers ( Duluth Eskimos, Chicago Cardinals; 1926-27, 1929-31). A tireless plunger in the middle. He weighed only 210, but in his era that was bigger than most linemen.
9. Jim Nance (Boston/ New England Patriots, Jets; 1965-71, 1973). His best weight was 240, but he got as high as 270. He was a gathering force who always seemed to be running downhill.
10. John Henry Johnson (four teams; 1954-66). He was a punishing 230-pounder with a mean streak.