Peyton Manning isn't the only NFL quarterback making the leap from football to pizza endorsements.
Dallas Cowboys quarterback Tony Romo teams up with Buffalo Bills head coach Rex Ryan in this hilarious new commercial for Pizza Hut's Crust Flavor Challenge.
The ad features Ryan throwing red challenge flags at people eating pizza with conventional crust, including Romo, who proclaims, "Not again!" in reference to Dez Bryant's overturned catch in the Cowboys' NFC divisional round playoff loss to the Green Bay Packers.
