Watch Canada's David Lemieux's spectacular one-punch KO over Spike O'Sullivan during their middleweight clash at the undercard of GGG vs Canelo 2 at the T-Mobile Arena, Las Vegas, Nevada.

Lemieux caught O'Sullivan in the very first round with a counter left hook that lands right on the pipe. O'Sullivan went down for good. The referee stopped the fight as O'Sullivan in no position to continue. Official time of the stoppage: 2:44 mark in the first round.

With all the trash talking leading into the fight, it was nice to see the fighters hug each other after the fight.

LAS VEGAS (Sept. 13, 2018): The undercard of the spectacular Canelo vs. GGG 2 card hosted a press conference featuring Mexican star Jaime Munguia ( 30-0, 25 KOs), who will make the second defense of his WBO Junior Middleweight World Title against rugged Canadian contender Brandon "Bad Boy" Cook (20-1, 13 KOs) in a 12-round battle. Former IBF Middleweight World Champion David Lemieux (39-4, 33 KOs) of Montreal, Canada and Irish warrior Gary "Spike" O'Sullivan (28-2, 20 KOs) of Cork, Ireland will go head-to-head in a 12-round middleweight battle that has Fight of the Year candidate written all over it. Former pound-for-pound king and former four-division world champion Roman "Chocolatito" Gonzalez (46-2, 38 KOs) of Managua, Nicaragua will make his highly anticipated return against experienced Mexican warrior Moises "Moi" Fuentes (25-5-1, 14 KOs) in a 10-round super flyweight battle that will open the HBO Pay-Per-View telecast.

Below is what the fighters had to say at today's press conference:

JAIME MUNGUIA, WBO JUNIOR MIDDLEWEIGHT CHAMPION
"I am very happy to be here.  I would like to thank my promoter, Fernando Beltran and Golden Boy. I am very happy to be here again and be a part of this tremendous card. I would like to tell you that I have an excellent opponent in front of me. He is a very good fighter. This is also my best preparation so far. I have corrected a lot of my mistakes and I am here to bring a great fight. Without anything else to say, I would like to thank you all and the media. I promise you a great fight, and I promise to leave the ring very warm for Canelo and GGG."

BRANDON COOK, JUNIOR MIDDLEWEIGHT CONTENDER:
"Thanks again. This is the biggest shot of my life. Munguia is the next up and coming star and I'm here to win. I've trained really hard. I've had 5 weeks to prepare. I want to thank Golden Boy for giving me this shot. I want to thank my whole team. I'm coming to fight. Make sure you buy that pay-per-view. This is the best place for boxing. I'm really going to enjoy this.

DAVID LEMIEUX, FORMER MIDDELWEIGHT CHAMPION:
"Vegas, we're back. The biggest fight of the year is here. The talk is done. Nlw it's time to walk the walk. His chin is going to be very warmed up for the fight - he's gonna need it. He's not going to stay in front of me, I'm ready for 12 rounds. If he passes 8 rounds, respect to him. He's just scared, that's why he talks to much. This Saturday he is going to get knocked out."

GARY "SPIKE" O'SULLIVAN, MIDDLEWEIGHT CONTENDER:
"Good afternoon. Thank you everyone for coming and putting on this magnificent event. Smell that? I smell fear. That greasy piece of shit. Saturday night, we're going to fight. The fight will be our careers. I'm coming for GGG or Canelo. I'm going to be coming for him Saturday night that greasy piece of shit."

ROMAN GONZALEZ, Former Four-Division World Champion:
"I would like to thank everyone that has been supporting me. I thank God for the opportunity. I'm very happy to be fighting a great champion, I'm ready to give a great fight. I feel very happy to be on this great card. I wish everyone a good day."

MOISES FUENTES, Super Flyweight Contender:
"Thank you all for this opportunity. I'm willing to die in the ring as long as I win. I'm going to walk away world champion on Saturday."

David Lemieux vs Curtis Stevens will headline HBO Boxing After Dark on March 11 at the Turning Stone Resort Casino in New York for a 12-round middleweight fight.

Well, many showed disappointment for a Lemieux-Stevens fight. Mostly were boxing fans who waited for a non-ppv boxing match on HBO. For them Lemieux-Stevens is a undercardesque match-up. They're looking for better, free fight on TV. Fed up of high PPV subscriptions to star fighter match-ups and at times not delivering the goods.

But make no mistake, if you look at it, Lemieux-Stevens is a guaranteed all-action match. Both men don't like to step back, hard hitters and looking for knockout victories. Lemieux has 82% knockout ratio while Stevens has 62% knockout rate on his ledger. Put them together and it's gonna be a hell of a fight.

As a boxing fan, I don't care who were the fighters shared a ring. As long as you I will see a good, competitive and action-packed fight, I'm good.

The worst thing about watching boxing is when you see a one-sided beat-down because of bad match-making. These were results of so-called tune-up fights, stay busy fights. Whatever you called it. Just to match an A level fighter to like C level fighter to boost the A level fighter's activity, stock and or record.

Lemieux-Stevens is not at all what I mentioned above. Both men are strong middleweights contenders. What's interesting is that both men lost to Gennady Golovkin. I'm sure they want to prove that they're just one level below Golovkin at the middleweight division.

Lemieux had set his eyes for another shot at the world title.

"I've told everyone my goal is to once again become middleweight champion of the world. Curtis is in the way, and I'm going to go right through him," said Lemieux.

If other boxing fans feel that this is a lousy match-up HBO can give on TV, well, for me, this is a must-see fight.

Canadian David Lemieux (34-2, 31KO's) was full of confidence during the final press conference for his middleweight title unification bout against Gennady Golovkin held Mecca of Boxing, Madison Square Garden.

Lemieux told sports media present at the press conference that he will not leave empty-handed on Saturday night, 17 October.

"I have made a lot of changes in my life. All of I what I have done has lead me here and I am extremely excited and proud to be here. I am here to make history and I promise that I have done everything it takes to make sure that I don't leave empty handed I will leave with the belts." says Lemieux.

Lemieux had already faced defeat in his career before and he took this experience as an advantage against his undefeated opponent. "I have faced victories, defeats, but nothing is more exciting and more gratifying than victory such as I am planning on Saturday", says Lemieux.

So here we go fight fans! This is a fight that doesn't happen every Saturday night. It's a fight between two fighters that come forward. Two fighters that don't know how to step back. This is war!