6. Don Frye
There is still fight left in Don Frye. He’s 2 years younger than Ken Shamrock, and Scott Coker put Shamrock in the cage twice last year.
In 2015 and early 2016, when Bellator was scheduling MMA seniors circuit bouts, I badly wanted Don Frye to be included. The recent UFC Hall of Fame inductee has a style that I believe would make for some interesting fights now that he’s in his 50s.
Sadly his last fight was in 2011, and he’s probably never going to have another one.