Today, the Cardinals are going up against the Bengals in Glendale.
And this marks the first big event at the stadium since the terror attacks in Paris two weeks ago.
As you can imagine, security is a top priority and Gelndale police are not taking any chances.
Glendale police are keeping an eye on the crowds as they head into the game.
Stadium officials also increased security and reinforced their restrictions on what you can bring into the stadium.