Threatening and intimidating
The eight-time Pro Bowler's highlight reel is filled with him destroying running backs and receivers much bigger in stature, but that's the physicality he brought to the gridiron.
A college tailback and fullback, Csonka's bruising running style made him one of the most intimidating runners of his time.
Quarterbacks try to intimidate opposing defenses with arm strength and precision, while middle linebackers go the more conventional route of intimidation by delivering crushing blows to running backs and wide receivers.
Defensive players initially come to mind when we think of intimidation, but lightning-quick runners, stonewall offensive lineman, and deep-threat wideouts have just as easily struck fear into opponents throughout the years.
Ball-carriers were always scanning the field for Lynch because you did not want to be on the receiving end of one of his jolts to the midsection.
One old-time offensive lineman you didn't want to mess with.
After three consecutive Pro Bowl selections from 1975-1977, Conrad Dobler was named the "NFL's Dirtiest Player" by Sports Illustrated.
Overwatch director Jeff Kaplan's latest blog post is a revealing read.
In it, he details the difficulties his team face when communicating with players on the game's forum pages, which include being "personally attacked and threatened" by fans.
Certainly a list worth debating...(Side note: After beginning, I realized it's nearly impossible to rank these players from 40-1, so this is simply a list of the top 40 most intimidating players in history.