Buffalo bills mascot billy buffalo runs the 40 yard dash
William "Billy" the Buffalo (debuted 2000 in Orchard Park, New York) is the official mascot of the NFL's Buffalo Bills. He is an 8-foot-tall (2.4 m) blue American buffalo and became the team's full-time mascot in 2000. He wears the uniform "number" BB.
References
Billy Buffalo Wikipedia(Text) CC BY-SA