It's been a while for Justin Wren ... five years to be exact.
The former The Ultimate Fighter (TUF) 10: "Heavyweights" was last seen in 2010 at Fight Force International: "Blood & Sand 8" in Biloxi, Miss., submitting Josh Robertson.
Where has he been since then?
Wren went on a soul-searching mission to the Congo, where he started a charity called "Fight for the Forgotten," dedicating his life to helping the Mbuti Pygmies. It was a chance for Wren to rebuild his life after battling drug addiction, a journey that he profiles in an upcoming book also titled "Fight for the Forgotten.