Sunday Night Football features a great matchup in the wild, wild west: our Arizona Cardinals are playing the Seattle Seahawks at home.
The game is ONLY on 12 News, with football coverage starting at 3 p.m.
We need you to join Team 12 in another matchup -- the great hashtag battle between Cards and Hawks fans. This will answer the question: which team has the best fans?
Here's how you help: Use #BirdGang on Twitter, Instagram and Vine. Our friends in Seattle will be using #Twelfie.
We have until kickoff Sunday.
PHOTOS: Arizona Cardinals Bird Gang