There's only one man breathing who has been in an Octagon with Kamaru Usman and Khamzat Chimaev -- Gilbert Burns -- and now "Durinho" is breaking down the highly anticipated UFC 294 co-main event!
37-year-old Burns joined Babcock on the "TMZ Sports" TV show (airs nightly on FS1) ... and having shared the cage with both title contenders, he told us where each man has the advantage.
For Khamzat, Burns says it's a plus he had a full camp -- even though he was training for a different opponent in Paulo Costa.