What’s the story?CM Punk and The Young Bucks’ Matt Jackson have teased an appearance from Punk at the upcoming “All In” event.Apparently, Punk responded to a tweet from Jackson about life at the top in pro-wrestling being tough. The duo then had a brief back-and-forth; with Jackson extending Punk an invitation to the “All In” event.In case you didn’t know…CM Punk competed in the sport of professional wrestling from 1999 until his retirement in 2014.Punk rose to prominence in the WWE—winning the WWE Championship, among other accolades—however in his departure, he levied several accusations against the WWE, alleging medical negligence on their part against him. None of the allegations were proven in court.The heart of the matterMeanwhile, The Young Bucks (Matt and Nick Jackson) are now regarded as two of the top professional wrestling stars in the world—constantly travelling the world over and performing for notable promotions such as ROH and NJPW.Matt Jackson seemingly sent out an assuming tweet; asserting his hectic travel schedule, as he flies from Sydney to Perth, then Brisbane, and then returns to LAX. Matt stated that he also plans on flying from LAX all the way to Tokyo, adding—“Staying at the top is harder than getting there.”Apparently, CM Punk chose to weigh in with his thoughts on Jackson’s tweet; urging the latter to run a marathon after all that, and then come talk to Punk.Following which, Jackson replied that they could run a marathon together in September (with the All In event taking place on 1 September). To which Punk replied—“Probably doing Chicago in October. I'll do a half with you in September.”Thanks for taking this journey with us. The location for ALL IN will be revealed on an upcoming episode of #BeingTheElite -Nick, Matt, Cody"Memories take us back. Dreams take us forward" pic.twitter.com/AzZUDNBqSt— All In (@ALL_IN_2018) January 10, 2018Run a marathon after all that then come talk to me 😘 pic.twitter.com/C7gW7FPcQp— Coach (@CMPunk) February 18, 2018Let’s run one together in September.— The Young Bucks (@MattJackson13) February 18, 2018Probably doing chicago in October. I'll do a half with you in September. pic.twitter.com/q43QQxfpPP— Coach (@CMPunk) February 19, 2018What’s next?CM Punk is rumoured to be fighting Mike Jackson at UFC 225 which takes place on 9 June in Chicago, Illinois.On the other hand, The Young Bucks and Cody Rhodes are busy promoting their All In show—that’s being funded by the trio themselves, and takes place on 1 September.Author’s takeHonestly speaking, CM Punk could very well return to the sport of professional wrestling later this year.MMA is a different sport and requires a separate set of skills, and although Punk has trained diligently at one of the world’s best MMA camps Roufusport, given his injury history and the shark tank that is the UFC Welterweight Division, he’d be better of returning to a sport he’s familiar with. Send us news tips at fightclub@sportskeeda.com