Like many other washed up (see: Emmitt Smith) and current athletes (see: Jason Taylor), Derrick Coleman thought he could boost his publicity and make some cheddar by appearing on a reality television show. Thus, he signed up for a taping of Spike TV’s, Pros vs. Joes. Turns out that Coleman injured his knee while boxing out a salesman from Philadelphia (quite the Joe). Stupidity Score = 6/10.

Brandon Marshall recently suffered lacerations in his arm. This sort of thing can happen. Maybe he was in a knife fight or was playing horseshoes with razorblades. Neither far-fetched story can match what truly happened, though. The Broncos receiver could miss up to four months of training, because he put his arm through a home entertainment center after slipping on a McDonald’s bag while on vacation in Florida. Stupidity Score = 9/10.

What’s worse, Marshall’s injury or Bill Gramatica’s injury? I vividly remember the little guy going crazy after kicking the game winner, only to be in agonizing pain thereafter.

Contract Clause For Stupidity from Sports Agent Blog - Sports Business, Sports Law, Sports Negotiations, NCAA Rules