With over 120 million Americans tuning in to watch the Super Bowl, the NFL is (by far) the most popular sport in America. From the start of training camp in August, to the Super Bowl in February, millions of diehard fans spend hours in front of their TV’s every Sunday and Monday. But for all the money and attention the sport receives, there are still so many crazy facts that even the most hardcore fans don’t know. After you’ve scrolled through the entire slideshow, leave some feedback in the comment section if you already knew more than two of these little known NFL facts — because that would put you in the 1% of NFL fans. We’re talking Adam Schefter status! Without further delay, here are 18 little known facts about the NFL that will blow your mind. Click the Next button to get started.