All UFC on Fox Fighters tested clean for banned substances

Junior Dos Santos, Cain Velasquez, Aaron Rosa, Clay Guida, Mackens Semerzier, Ricardo Lamas, Pablo Garza, Robert Peralta, DaMarques Johnson, Cub Swanson, Clay Harvison, Matt Lucas, Benson Henderson and Dustin Poirier all tested clean for banned substances such as steroids, drugs.