Though it has existed since 1999, the "Tuck Rule" is known in many circles as the "Tom Brady" rule.
On a snowy January afternoon in 2002, the Oakland Raiders' playoffs run ended because of that very rule. Since that Sunday, dozens of quarterbacks have been saved from turnovers they have earned because (sigh) their arms were moving forward in a passing motion.
The game has changed.
Throughout sports there have been rules that have been identified with controversial plays or players. Here are five sports rules that could be implemented to change their respective sport, for better or worse.