CM Punk’s AEW run ended after a backstage incident at All In 2023 , when he reportedly got into a physical altercation with Jack Perry; AEW then terminated his contracts with cause. He later returned to WWE, and that became the next big chapter in his career.

What happened

  • Punk joined AEW in 2021 and became one of its biggest stars.
  • His time there got rocky, with injuries and multiple backstage controversies.
  • The breaking point came after the All In incident in London, which AEW said led to his firing.

Why fans still talk about it

  • It was one of the most talked-about wrestling stories of 2023.
  • The fallout affected AEW’s locker-room culture and storylines.
  • Punk’s departure also reshaped expectations for both AEW and WWE fanbases.

Quick context

If you mean “what happened” in one line: he clashed backstage, AEW fired him, and he later resurfaced in WWE.

If you want, I can also give you the full timeline of CM Punk’s AEW run in plain English.