Jake Paul has been warned not to make the switch from boxing to the UFC after CM Punk's failed efforts in the octagon.
The YouTuber-turned-boxer has amassed a 5-0 professional record, although mostly against retired UFC fighters as well as a basketball player and another social media star.
And he has been told not to go the route of Punk, who was humiliated in his two losses in the UFC after making the switch from professional wrestling.
