The document discusses the top three pound-for-pound MMA fighters today. Demetrious Johnson, also known as Mighty Mouse, is considered the undisputed king of the UFC Flyweight division, having defended his title 11 times and seldom being hurt. Khabib Nurmagomedov, or The Eagle, has won 26 consecutive fights but has been sidelined for two years due to recurring injuries. Daniel Cormier has beaten everyone he has faced except Jon Jones and is on track to be considered the greatest of all time.