I've never played a down of real, organized football before, but I can only imagine how much this would hurt. Chck out how Rams safety TJ McDonald brings down Niners TE Vernon Davis.
Davis then tweeted this out today: It should be a league rule saying that a defender can not tackle a player by his penis. #NFL the most painful thing ever! #NFL
In the defender's...defense, he avoided Davis' helmet, which is all the NFL cares about these days, right?