CM Punk UFC WWE
CM Punk's first MMA fight will come at UFC 203 against Mickey Gall. Getty

12:34 p.m. ET - That concludes our coverage of UFC 203. UFC 204 will take place in four weeks.

12:33 p.m. ET - This is great. Joe Rogan showing Overeem the replay and proving that Miocic didn't tap.

12:31 p.m. ET - Overeem he claims Miocic tapped earlier in the fight and the ref didn't see it. I'm not so sure about that.

12:30 p.m. ET - This is what ended it. Viscious.

12:28 p.m. ET - Very fun main event after a lackluster first four fights.

12:27 p.m. ET -

12:26 p.m. ET - Miocic dominated the final two minutes with plenty of shots to Overeem's head. He finally got him on the ground and continued to connect with hammer fists until the fight was called.

12:25 p.m. ET - Miocic ends it with 34 seconds left in the first.

12:23 p.m. ET - Miocic turns the tables and is pounding away at Overeem and in control.

12:22 p.m. ET - Overeem drops Miocic but he escapes a guillotine and is back on his feet.

12:20 p.m. ET -

12:19 p.m. ET - Round No.1 about to get underway for the heavyweight title fight. This crowd is into it.

12:17 p.m. ET - Miocic has 12 knockouts in his 15 wins. This one might not last very long, no matter who wins.

12:14 p.m. ET - Lots of cheers for Miocic even before his music hits.

12:12 p.m. ET - Here comes Overeem. Miocic should get a huge reaction in front of his home fans. Overeem doesn't get much of one. A smattering of boos.

12:08 p.m. ET - It's time for the main event. It's certainly been an interesting PPV.

12:02 p.m. ET - Werdum wins on the official scorecards 29-27, 30-27, 29-28.

12:01 p.m. ET - Some action after the fight. Werdum just kicked someone from Browne's corner. The two camps have to be separated.

11:58 p.m. ET - Looks like Werdum wins the third round 10-9 for a clean sweep. But that was a weird, boring fight.

11:56 p.m. ET -

11:55 p.m. ET - Browne needs a knockout here for sure.

11:52 p.m. ET - Crowd getting a little restless with not much action. I've got Werdum winning the second round 10-9.

11:47 p.m. ET- Werdum up 10-9 after one.

11:46 p.m. ET - Werdum drops Browne with a punch to the jaw, but Browne somehow survives the first round with Werdum all over him.

11:44 p.m. ET -

11:42 p.m. ET - We've got a quick stoppage here for some reason. Now the action is back underway. That was bizarre. Browne was complaining about something.

11:40 p.m. ET - Werdum lands a kick to the face within three seconds. This could be a short one.

11:39 p.m ET - Werdum is in the cage and we're about to get underway.

11:35 p.m. ET - Travis Browne enters the octagon. He's a +200 underdog at online sportsbooks.

11:30 p.m. ET - Fabricio Werdum vs. Travis Browne is next.

11:28 p.m. ET -

11:27 p.m. ET -

11:26 p.m. ET -

11:23 p.m. ET - Punk got destroyed. That went just as many expected.

11:22 p.m. ET - Not a good showing for Punk. He taps out to a rear naked choke less than halfway through the first round.

11:21 p.m. ET - Punk has been on the ground for almost the entire first 90 seconds. He might not have much time left.

11:20 p.m. ET - Punk is down in seven seconds.

11:19 p.m. ET - Punk is 37 years, old, 13 years Gall's senior.

11:17 p.m. ET - Sounds about right.

11:15 p.m. ET - Punk comes out to Cult of Personality, his WWE theme. As he should.

11:12 p.m. ET - Here comes Mickey Gall. He's 2-0 in his MMA career.

11:08 p.m. ET -

11:03 p.m. ET - CM Punk up next. Let's see what one of the best WWE superstars to ever do it has got when he steps in the octagon for the first time.

11:02 p.m. ET - Not a great fight. Faber was outclassed and the crowd was booing at points. Rivera wins 30-27 on the official scorecards.

11:00 p.m. ET - Rivera 10-9 in the third round. Should be a unanimous decision victory.

10:56 p.m. ET - Faber slaps Rivera in the face and pokes him in the eye, causing a temporary stoppage.

10:54 p.m. ET -

10:53 p.m. ET - Rivera wins the second, 10-9.

10:52 p.m. ET - Rivera is total control of this fight. I'm not sure Faber makes it through the third round.

10:47 p.m. ET - Warning to Faber for a low blow kick.

10:45 p.m. ET - Rivera wins Round No.1 won 10-9.

10:39 p.m. ET - Faber is 10 years older with a 1.5-inch reach disadvantage.

10:38 p.m. ET - Faber enters the octagon. He's never lost a non-title fight.

10:36 p.m. ET - Here comes Rivera. It's his third fight in UFC, but he's won 18 straight bouts overall.

10:33 p.m. ET - Faber is a slight underdog. He's lost two of his last three fights.

10:30 p.m. ET -

10:25 p.m. ET -

10:24 p.m. ET - Dominant performance. Completely one-sided, guillotine choke to end it.

10:23 p.m. ET - That's it. Calderwood taps out with 24 seconds left in the round.

10:20 p.m. ET - A few takedowns by Andrade. She's in control of this round and has Calderwood up against the cage.

10:18 p.m. ET - Andrade is a -140 favorite. Calderwood has +110 odds in Las Vegas.

10:17 p.m. ET - Andrade enters the octagon. Eleven of her 14 MMA wins have come via early stoppage.

10:13 p.m. ET - Here comes Calderwood. She's never been taken down in UFC.

10:10 p.m. ET - The women's strawweight fight between Jessica Andrade and Joanne Calderwood begins the main card.

10:05 p.m. ET - Miocic is barely favored with -120 betting odds at Bovada.lv, while Overeem has -110 odds. CM Punk makes his debut as a heavy underdog (+300) against Mickey Gall (-400). CM Punk left WWE in January 2014.

10:03 p.m. ET - Welcome to International Business Times' coverage of UFC 203. We've got five fights on the main card, culminating with Stipe Miocic vs. Alistair Overeem.

UFC 203 is here with a heavyweight championship fight and one of the most anticipated debuts in the company’s history. Stipe Miocic puts his belt on the line against Alistair Overeem, while CM Punk enters the octagon for the first time since leaving WWE.

It’s Miocic’s first title defense since he knocked out Fabricio Werdum in the first round of their UFC 198 main event, winning the championship in his 11th UFC fight. He’ll close out Saturday’s PPV, fighting in front of his hometown fans in Cleveland, Ohio.

Punk is fighting in a three-round non-championship welterweight fight, but he’ll be the reason many fans order the PPV. He’ll take on Mickey Gall, who has just a little more professional MMA experience than Punk, winning both of his fights in less than four total minutes.

Miocic is the slightest of favorites, though the betting odds for his fight with Overeem are almost even. Less than three years since he quit professional wrestling with no MMA fights under his belt, Punk is a heavy underdog, and it would be an upset if the fight lasts the full three rounds.

Three other fights are set for the main UFC 203 card. Looking to get another heavyweight title shot, Werdum is favored to beat Travis Browne. Bantamweight Urijah Faber takes on Jimmie Rivera, and Jéssica Andrade faces Joanne Calderwood in a women's strawweight fight.

Check back in later for UFC 203 analysis and live round-by-round coverage, including how we are scoring each round of every fight on the main card. To stay up-to-date on the PPV, simply refresh this page periodically for live updates.

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