16. Done Frye
Like Dan Severn, Don Frye too kicked things off with Greco Roman and Freestyle wrestling.
He was actually coached by Severn when Don was at Arizona State.
Frye started fighting in MMA in 1996, after helping Dan Severn train the year before.
Don retired from MMA in 2011 and holding a 20 win 9 loss and 1 draw record.
15. Dos Cara Jr.
During his professional wrestling career at AAA promotion in Mexico, Del Rio also fought in MMA from 2001-2010.
His record is 9-5.