Corey Graves has been very outspoken in the past about how CM Punk essentially decided to end their friendship after he walked out on WWE in January 2014.Punk recently returned to WWE programming for the first time in almost six years as an analyst on weekly FS1 show WWE Backstage, which prompted lots of fans to ask Graves for his opinion on the former WWE Champion’s new role.Speaking on his After The Bell podcast, the SmackDown commentator chose not to go into detail on his past issues with Punk. Instead, he simply stated that FOX has made a “great move” by recruiting one of wrestling’s most controversial personalities.“This, of course, has fuelled rumours and speculation aplenty: Is Punk coming back into the WWE fold? Is he going to compete again? Punk himself has said ‘no’, he’s not interested in wrestling any more. But, as his appearance alone proved, you can never say never in WWE. I’ve been getting a litany of tweets and Instagram messages asking my person opinion on the matter. My personal opinion on the matter is that it is a great move by FOX.”(If you use quotes from this article, please credit After The Bell and give a H/T to Sportskeeda for the transcription).Why are CM Punk and Corey Graves no longer friends?Following CM Punk’s loss against Mike Jackson at UFC 225 in June 2018, Corey Graves posted a series of tweets about the WWE Superstar-turned-MMA fighter.He criticised Punk for “abandoning everybody who stood by his side” and claimed that his former friend, who held his first son before he did, betrayed his loyalty.Maybe abandoning everybody who stood by your side, even when we weren’t supposed to, only to have you turn your back on us wasn’t the right move after all? No anger. Only sadness.— Corey Graves (@WWEGraves) June 10, 2018Awww. Seems the “fans” are disappointed. Maybe you guys should know that “That Dude” held my first son before I did because I was on tour and I trusted him.I had dinner with him the week after he quit.— Corey Graves (@WWEGraves) June 10, 2018The first rule of “punk rock” is loyalty, and this guy betrayed it all.I still love you, “friend” and I’m sorry you got lost.— Corey Graves (@WWEGraves) June 10, 2018I’ll fight him.— Corey Graves (@WWEGraves) June 10, 2018Now you can rate RAW, SmackDown and NXT matches on Sportskeeda!