CM Punk will finally step into the cage on September 20th, barring any unforeseen issues in the meantime. The former WWE superstar signed with the UFC in December of 2014. Now, alomst two years later, he is set to meet Mickey Gall in a featured UFC 203 bout.

To set up his backstory, the UFC has created a four-part documentary showing his evolution into an MMA fighter. Punk, real name Phil Brooks, did not have a competitive background in any of the disciplines of MMA when he joined Roufussport to train for his debut, though he has trained jiu-jitsu for years. The 37-year-old has suffered two injury setbacks while preparing for this chance, but it finally ready to get in there and show the world what he has.

You can check out part one of the documentary, titled "The Evolution of Punk", above. We will post the rest of the parts when they become available online.

UFC 203 goes down in Cleveland, will be headlined by a heavyweight title fight between Stipe Miocic and Alistair Overeem.