Peter Quillin KOs Fernando Guerrero

NEW YORK -- "Kid Chocolate" Peter Quillin pounded his way to a dominant seventh-round knockout of Fernando Guerrero to retain his middleweight title for the first time on Saturday night at the Barclays Center in Brooklyn.

Quillin got his New York crowd excited in the co-feature on the card headlined by unified junior welterweight titlist Danny Garcia's defense against former titleholder Zab Judah. He scored four total knockdowns before referee Harvey Dock stopped the fight at 1 minute, 30 seconds of the seventh round.

The last time Quillin fought at the Barclays Center was on the new arena's inaugural card in October and he won his world title by unanimous decision against Hassan N'Dam of France, whom he knocked down six times in an action fight.

He was even more dominant against Guerrero.

"I give Fernando credit for coming up and trying to beat me," Quillin said. "I stuck to the game plan. My corner kept telling me what to do and I did that. I've been working hard for this fight. I wanted people to see the ability of both of us. I felt like everything was in slow motion in the ring because I knew what I was doing."

Quillin (29-0, 21 KOs) nearly ended the fight in the second round when he badly hurt Guerrero and dropped him twice. He landed a right hand that sent him to the canvas for the first time midway through the round. Later in the round, Quillin floored him again with a vicious three-punch combination and then nearly dropped him for a third time when he rocked him again as Guerrero was barely able to stay upright.

Guerrero (25-2, 19 KOs) began to have some success in the fourth round landing shots, but a few seconds before the round ended, Quillin landed a pair of right hands that staggered him and nearly knocked him down.

Guerrero, a 26-year-old southpaw from Salisbury, Md., showed great heart and rebounded to have a big sixth round as he went for broke and began landing stiff shots and pushing Quillin back, but it was too little too late.

In the seventh, Quillin, 29, of New York, sent him reeling into the ropes for a knockdown, because the ropes held him up. When the fight resumed, Quillin landed a big right hand to the head and Guerrero went down again, prompting Dock to call it off.

"He was a better fight tonight," Guerrero said. "His power was good. I tried to force the fight. He's a great champion and he took a great punch. I felt like I had him in the sixth. I'm a warrior. I'm not going to give up. I'm always going to fight to provide for my family and fight for (his native) Dominican Republic."

One interesting aspect of the fight was that it marked the first time that powerful manager/adviser Al Haymon, whose stable also includes Floyd Mayweather Jr. and Garcia, matched two of his fighters against each other.

Both Quillin and Guerrero struggled to make the 160-pound weight limit. Quillin was 1½ pounds over and Guerrero weighed 160.4 on their first attempt to make weight at Friday's weigh-in, although both made it after returning to the scale about an hour later.

Jacobs blows out Collins

Middleweight Daniel Jacobs (25-1, 22 KOs) of Brooklyn hammered Keenan Collins (15-8-3, 10 KOs) of York, Pa., in a one-sided fourth-round knockout win.

The fight was Jacobs' third since making a comeback after nearly dying from osteosarcoma, a rare form of bone cancer. But it was his first fight since his doctor declared him cancer-free near the end of his training camp.

"I'm not just fighting for myself, I'm fighting for cancer patients," said Jacobs, who is now involved in raising money for cancer research through his foundation. "This is a gentleman's sport. We're dogs in the ring, but we're men outside of it and being a philanthropist means so much to me."

Jacobs, 26, the 2009 ESPN.com prospect of the year, roughed up Collins with ease and was barely touched with anything coming back.

He rocked Collins repeatedly throughout the fight before really pouring it on in the fourth round. He dropped him with a hail of shots and later knocked him down with a clean left hook. As he was battering him again following the second knockdown, referee Shada Murdough stepped in and stopped the fight at 2 minutes, 6 seconds.

"I was definitely more aggressive and I was in better shape than he was," Jacobs said. "I wanted to test him. I've been working on a combination called the rumble and when I heard my corner scream out 'rumble!' I started throwing punches and didn't stop. I feel amazing. I don't question my shape or my skill and I want to step up accordingly."

• Former welterweight titlist Luis Collazo (33-5, 17 KOs) of Brooklyn blew through Miguel Callist (27-9-1, 18 KOs) of Panama, stopping him in the fifth round of a one-sided fight. Collazo dropped fellow southpaw Callist hard with a left hand and although he made it to his feet, Callist's corner threw in the towel and referee Earl Brown called it off at 1 minute, 33 seconds.

Collazo did major damage in the third round, rocking Callist several times and driving him into the ropes with an assortment of punches. He had Callist in big trouble and finally floored him just as the round was coming to an end. As soon as Callist made it to his feet the bell sounded. Collazo did more damage in the fourth, rocking Callist, a former lightweight title challenger, repeatedly but Brown did not show any interest in stopping it. He was also ready to let the fight continue after the fifth-round knockdown until the Callist corner threw in the towel.

• Bronx junior middleweight prospect Eddie Gomez (14-0, 9 KOs), just 20, won a lopsided, but tough, eight-round decision against Luis Hernandez (21-4, 14 KOs). Gomez dropped him in the first round and third rounds and won big on the scorecards, 80-72, 80-72 and 791-71. But Hernandez, of Ecuador, was game. Although he took a lot of punishment, he returned fire several times and made Gomez work for his victory.

• Middleweight Boyd Melson (10-1-1, 3 KOs) of Brooklyn, who donates all of his purse money to spinal cord injury research, cruised to a lopsided six-round decision win against Edgar Perez (5-4, 2 KOs) of Chicago. Melson, who dropped Perez with a left hand in the fifth round, won 60-53, 60-53 and 59-54.

• Light heavyweight Marcus Browne (4-0, 4 KOs), a 2012 U.S. Olympian from Staten Island, pounded Taneal Goyco (4-6-1, 2 KOs) of Philadelphia in a second-round knockout win. Browne floored Goyco with a right hand in the first round, dropped him again early in the second round and was teeing off on him when Goyco's corner threw in the towel and referee Earl Brown called it off at 54 seconds.

• Brooklyn welterweight prospect Zachary Ochoa (4-0, 3 KOs) was pushed the distance for the first time but swept Calvin Smith (2-3, 0 KOs) of Prichard, Ala., for a shutout decision, 40-36 on all three scorecards.

• Philadelphia bantamweight Miguel Cartagena (6-0, 3 KOs) rolled to a four-round shutout decision against Angel Carvajal (3-0, 0 KOs) of Chicago, but it was an action fight with some fierce exchanges. Cartagena won 40-36 on all three scorecards.

• Super middleweight D'Mitrius Ballard (2-0, 2 KO) of Temple Hills, Md., opened the card with a second-round knockout of Marcus Clay (2-6, 0 KOs) of Baton Rouge, La. Ballard dropped Clay with a right hand in the first round and the continued to dominate in the second round before driving him the canvas with a body shot and referee Brown waved it off at 2 minutes, 21 seconds.