I came across an article that listed the top 10 biggest hitters in NFL history. Something that in today's NFL is definitely frowned upon.
Be that as it may though, they have Lambert listed as 5th on the list.
5. Jack Lambert (LB) 1974-1984 Pittsburgh Steelers
Some guys are tough, some guys try to look and act tough, and some guys are all of the above. Jack Lambert was one of those guys who looked the part, walked the walk, and talked the talk. His famous toothless scowl had most opponents fearful before the snap. Unfortunately things only got worse for them. He was a hard-nosed, hard-hitting SOB who took pleasure in making grown men afraid of him. I would pay good money to see him in meeting with Roger Goodell after getting chided for a “hard tackle”.