Rex Ryan has thrown his first challenge flag as coach of the Buffalo Bills ...
... in a Pizza Hut commercial.
In a spot that debuted Sunday evening, Ryan throws red flags at pizza eaters because he is outraged due to their crust-eating habits.
He's wearing his trademark vest in black-and-red (@billsequipment tweeted out last week that there will be a Bills version of the vest).
It seems like there possibly might be more ads in the campaign, which launched Sunday night, including via a tweet of the youtube video from @PizzaHut: An on-screen graphic features the title: "The Crust Flavor Challenge with Rex Ryan."
Dallas Cowboys quarterback Tony Romo also appears in the ad.
In games, the red flag is used by head coaches to alert officials that they would like to challenge a play via video replay. In the ad, the red flag is whipped at pizza eaters -- and hits them in a variety of areas.
Here it is: