CM Punk is known in the pro wrestling world to be notoriously difficult to deal with, but UFC CEO had nothing, but positive things to say about his experience working with the Second City Saint.
Punk blew up on the indie scene before eventually making a fairly iconic run with the WWE between 2006 and 2014. Unfortunately, much of his success with the company was overshadowed by his highly publicized criticism of the organization’s inner workings. That ultimately led to Punk walking away from WWE and the industry altogether after spending 434 days as the WWE Champion.