In his octagon debut, the former Strikeforce Heavyweight Champion made quick work of Lesnar, beating him by TKO at 2:26 of the first round following a body kick.

Overeem was able to stuff the few takedown attempts from Lesnar and land some powerful knees to the body that softened Lesnar up for the finish. Overeem will now face Junior dos Santos for the UFC heavyweight title in the near future.

Following the loss, his second in as many fights, Lesnar retired from competition. With a pair of bad knockout losses, his aura has faded. With a title shot not likely to come any time soon, it made sense for Lesnar to call it quits. It hurts the UFC as he was their top draw, but I am sure they can market Overeem.

In the co-main event, Nate Diaz had an impressive decision win over Donald Cerrone. Diaz used his boxing to pick apart Cerrone. The Cowboy took a number of unanswered punches throughout the 15 minutes.

In a big upset, Johny Hendricks knocked out Jon Fitch in just 12 seconds. Fitch, who had just one loss in the octagon to Georges St. Pierre, had been off for nearly a year due to shoulder surgery.

Fitch threw a couple of punches in the opening seconds but then walked in to a big left from Hendricks that put him out cold for a moment.

The loss for Fitch is devastating, as he was close to earning a title shot, and now will fall well back into the contender list. Due to a lack of exciting fights, Fitch can’t expect to headline an event any time too soon.

For complete results from UFC 141, check out the jump.

UFC 141 Results

MGM Grand Garden Arena – Las Vegas

Friday, Dec. 30, 2011

265 lbs.: Alistair Overeem defeats Brock Lesnar via TKO (Strikes) Round 1

170 lbs.: Johny Hendricks defeats Jon Fitch via KO (Strikes) Round 1

155 lbs.: Nate Diaz defeats Donald Cerrone via Unanimous Decision

145 lbs.: Jim Hettes defeats Nam Phan via Unanimous Decision

205 lbs.: Alexander Gustafsson defeats Vladimir Matyushenko via TKO (Strikes) Round 1

145 lbs.: Ross Pearson defeats Junior Assuncao via Unanimous Decision

155 lbs.: Danny Castillo defeats Anthony Njokuani via Split Decision

170 lbs.: Dong Hyun Kim def Sean Pierson via unanimous decision

155 lbs.: Jacob Volkmann def. Efrain Escudero via unanimous decision

145 lbs.: Diego Nunes def. Manny Gamburyan via unanimous decision

Junior dos Santos won the UFC Heavyweight Championship in a little over a minute as he knocked out the champion, Cain Velasquez from the Honda Center in Anaheim.

Dos Santos came into the fight as the betting underdog, but a devastating right hand early in the first round caught the champion in the ear and sent him crashing.

With Velasquez’ equilibrium admittedly thrown off, dos Santos was able to finish the fight with a series of ground-and-pound strikes that left Velasquez face down in the octagon.

The Brazilian exploded with joy as he becomes the third Brazilian to hold a UFC title, joining middleweight champ Anderson Silva and featherweight kingpin Jose Aldo.

In the night’s co-main event, Ben Henderson earned a lightweight title shot against Frankie Edgar with his unanimous decision win over Clay Guida.

The contest was very competitive and neither man seemed to have an obvious superiority over the other, but Henderson was able to gain more dominant positions than Guida and he also exhibited more control during the fight.

For complete UFC on FOX 1 results, check out the jump.

UFC on FOX 1 Results

Honda Center – Anaheim, California

Saturday, Nov. 12, 2012

Junior dos Santos defeats Cain Velasquez via TKO (Strikes) Round 1

Ben Henderson def. Clay Guida via unanimous decision

Dustin Poirier def. Pablo Garza via submission (D’Aarce choke) at 1:32 of Round 2

Ricardo Lamas def. Cub Swanson via submission (arm triangle choke) at 2:16 of Round 2

DaMarques Johnson def. Clay Harvison via TKO at 1:34 of round 1

Darren Uyenoyama def. Norifumi Yamamoto via unanimous decision

Robert Peralta def. Mackens Semerzier via TKO at 1:54 of round 3

Alex Caceres def. Cole Escovedo via unanimous decision

Mike Pierce def. Paul Bradley via split decision

Aaron Rosa def. Matt Lucas via majority decision

Here’s a weekly rundown of MMA content from Ben Goldstein of CagePotato.com:

- Lyoto Machida retained his light-heavyweight title in a very controversial decision over Mauricio Rua at UFC 104. Luckily, there will be an immediate rematch between the two Brazilian standouts.

- DREAM’s first “White Cage” event featured another lopsided win for Alistair Overeem, another head kick knockout by Marius Zaromskis, and another back-from-the-dead victory for Kazushi Sakuraba.

- A month-long flu has forced Brock Lesnar to pull out of his title defense against Shane Carwin at UFC 106. Coincidentally, Carwin himself had been battling swine flu, but that wasn’t going to make him puss out of the fight.

- Rashad Evans became the first coach in Ultimate Fighter history to win seven fights in the round-of-16, as the imbalanced Matt “Meathead” Mitrione scored an upset over well-traveled veteran Scott Junk on Wednesday’s episode of TUF 10. Rampage responded by savagely assaulting a door.

- We took a look at some of the nastiest leg-kicks in MMA history.

- Fedor Emelianenko looked disturbingly passionate in the first leaked image from EA’s new MMA video game, and mighty dapper in his Glorious Sweater of Absolute Victory.

- Sexy UFC ring girl Natasha Wicks (aka “the blonde one”) modeled some Halloween costumes for all her drooling fans. Speaking of which, if you happen to be going out as an MMA fighter this Halloween, e-mail a picture of yourself to feedback@cagepotato.com by tomorrow night, and you can win a $100 gift card from MMA Warehouse.

Here’s a weekly rundown of MMA content from Ben Goldstein of CagePotato.com:

- Hulking heavyweight Alistair Overeem destroyed a completely outmatched opponent last weekend and plans on destroying an equally outmatched opponent this weekend.

- The two most emotionally-abused castmembers on “The Ultimate Fighter: Heavyweights” faced off Wednesday night, and coach Rashad Evans kept his historic winning streak alive.

- We demonstrated the difference between a ridiculously unnecessary sucker punch and a completely understandable one.

- The upstart Bellator MMA league is returning next April — with a massive television deal.

- We took a look at five MMA fights that happened too early.

- The UFC booked high-profile rematches between Nate Diaz and Gray Maynard, and Jon Fitch vs. Thiago Alves.

- We’re sad to report that UFC light-heavyweight champion Lyoto Machida drinks his own pee. Nevertheless, he’ll be kicking Mauricio “Shogun” Rua’s ass tonight at UFC 104 in Los Angeles. Check out our analysis of the card here, and swing by CagePotato.com at 10 p.m. ET / 7 p.m. PT for our thrilling liveblog of the pay-per-view broadcast.