As the Seattle Seahawks try to repeat as Super Bowl champions, they come prepared with one of the most dynamic weapons in the NFL. No, it's not their confident and dominant defense. It's not their young star quarterback Russell Wilson. It's not their popular head coach Pete Carroll.
It's the fans in their stadium. All 67,000 of them.
Here are some incredible facts about Seattle's CenturyLink Field faithful, also referred to as The 12th Man.