It is a training session that Rafael Cordeiro may have regretted being a part of.
The renowned mixed martial arts coach has been working closely with former heavyweight boxing champion Mike Tyson, as the 54-year-old eyes a comeback to the ring.
Tyson is set to battle former fighter and fellow half centurion Roy Jones Jr. on November 29. It will be Tyson's first bout since his loss via retirement to Kevin McBride in 2005.
'Iron Mike' was synonymous with devastating power in his punches throughout an illustrious - and at times infamous - career. That was on full display during his latest session.