UFC light heavyweight Dan Henderson is as iconic as competitors come in Mixed Martial Arts. From his facial features to fighting style, “Hendo” is instantly recognizable and holds a place among the all-time greats as a man who has found consistent success for more than 15 years including titles in multiple organizations. In fact, while these countdowns tend to feature a Top 5 format, the 43-year old Henderson’s run in the ring has been so impressive he’s merited an extra five slots. (Photos by USA Today Sports Images)