Juan Manuel Marquez

Juan Manuel Marquez: "As for the steroids, I'm willing to give myself to any anti-doping tests. Why don't Manny Pacquiao and I both do it? I don't care. To shut everybody up. And, of course, my exams have always been clear."

Juan Manuel Marquez on Manny Pacquiao: "It seems that Manny has only one opponent every time we fight -- me -- while I have four – Manny and the three judges."

Manny Pacquiao after his third fight with Juan Manuel Marquez: "When I got back to the dressing room I thought, 'That finally settles that. I won’t have to fight Juan Manuel Marquez again.'"

Robert Guerrero on his victories over Selcuk Aydin and Andre Berto: "I've had to come into these last two fights and to set the tone and show the world that I'm a force to be reckoned with in the welterweight division."

Adrien Broner: "I know what fight can happen, and that's me and [Manny] Pacquiao."

Bob Arum on Jimmy Kimmel's spoof of Manny Pacquiao: "Something like that is so invaluable in promoting a fight. It gets to an audience that isn't necessarily into boxing. There's no telling what effect it has."

Jimmy Kimmel to Manny Pacquiao: "You announced that you had quit drinking, and quit gambling, and that you had quit cock fighting, and then, for the first time in seven years, you did not win...Will you go back to drinking, gambling and cock fighting?"

Manny Pacquiao and arch-rival Juan Manuel Marquez once sang "La Bamba" during a duet on Mexican television during the promotion leading up to their third fight.

Oscar De La Hoya, Freddie Roach and Sugar Ray Leonard, who all faced Hector "Macho" Camacho in the ring, agree that the Puerto Rican star had the makings of an all-time great.

Manny Pacquiao on Juan Manuel Marquez: "Our strategy this time is more aggressiveness and of course to develop and to improve the strength more, and also focus on the speed. We have the side-to-side movement. I'm not worried about his strength."

"After I scored the knockdown, early in the fight, I went back to my corner thinking I would finish him in the next round. Freddie Roach told me, 'We have him right where we want him. Finish it.'"

Juan Manuel Marquez on the second fight with Manny Pacquiao: "I still get very angry when I think about hearing those scores being read. After two fights I felt I had won at least 19 of the 24 rounds."

If southpaw Michael Farenas lands, "that'll be the end of the road" for Yuriorkis Gamboa, says Farenas' promoter,  Gerry Penalosa. 

Unbeaten former featherweight beltholder Yuriorkis Gamboa will meet southpaw Filipino Michael Farenas on the Dec. 8 Manny Pacquiao-Juan Manuel Marquez IV card.

WBC junior featherweight titleholder Abner Mares and eight-division titlewinner Manny Pacquiao handed out free Turkeys at different venues over the weekend.

Oscar De La Hoya says Adrien Broner "is Floyd Mayweather, [Bernard] Hopkins, myself...all wrapped into one."

Adrien Broner spoke to RingTV's Bill Emes while celebrating his dominant victory over Antonio DeMarco in his lockeroom. Broner says he's not ready to go to 140 pounds yet and thinks a unification bout with Ricky Burns could be a big fight.

Manny Pacquiao will make his seventh appearance on Jimmy Kimmel Live on Nov. 21 in advance of his Dec. 8 clash with Juan Manuel Marquez. Pacquiao had been victorious in every fight following his berth on the show except the last one, after which he lost to Tim Bradley.

Mexican amateur sensation Jose Ramirez participated in his first workout under the Top Rank banner at The Wild Card in Hollywood, Calif., on Wednesday, and will make his professional debut on the Dec. 8 undercard of Manny Pacquiao-Juan Manuel Marquez IV.

Manny Pacquiao on his controversial draw with Juan Manuel Marquez in their first fight: "After I knocked Márquez down for third time in the first round, and I headed back to the corner, I was thinking 'It’s over.'"

Juan Manuel Marquez on his controversial draw with Manny Pacquiao in their first fight: "I got up from three first-round knockdowns and gave him a boxing lesson for the final 10 rounds."

HBO's 24/7 series chronicling the events leading up to Manny Pacquiao-Juan Manuel Marquez IV will debut on Saturday in advance of the network's double-header featuring Broner-DeMarco and Mitchell-Banks.

As he trains to face his own Marquez, Brian Viloria is back in the Wild Card alongside Manny Pacquiao, and says the old days are where Pacman should look for the keys to victory.

WBA featherweight "super" titleholder Chris "The Dragon" John defended his belt for the 17th straight time with Friday night's unanimous decision over Chonlatarn Piriyapinyo in "The Battle of the Undefeated."

Highly-celebrated 2012 U.S. Olympian Jose Ramirez has signed with Top Rank. The lightweight will make his professional debut on the undercard of the fourth bout between Manny Pacquiao and Juan Manuel Marquez on Dec. 8 at the MGM Grand in Las Vegas. 

Rapper 50 Cent to Floyd Mayweather Jr. on Twitter: "You should have know not to go against me PUNK."

Juan Manuel Marquez: "This fight, I will try to knock out Manny Pacquiao. There is no way that I can let this fight be a decision."

The Manny Pacquiao-Juan Manuel Marquez IV undercard could feature undefeated featherweight Yuriorkis Gamboa. An IBF lightweight title bout between beltholder Miguel Vazquez and Mercito Gesta is reportedly "done" for the PPV show.

Manny Pacquiao began training in Hollywood on Monday for his fourth clash with Juan Manuel Marquez, which is slated for Dec. 8 at The MGM Grand in Las Vegas.

Unbeaten junior welterweight Brandon Rios is an ambassador for  the non-profit organization, Padres Contra El Cancer, or, Parents Against Cancer.

Manny Pacquiao will commence training for his fourth bout with Juan Manuel Marquez at the Wild Card Boxing Club in Hollywood, Calif., after having sparred for two weeks in the Philippines.

Eight-division title-winner Manny Pacquiao lands in Los Angeles on Saturday to begin training for his fourth bout against Juan Manuel Marquez on Dec. 8.

Bob Arum says Brandon Rios could get a shot at the WBO junior welterweight title against Ruslan Provodnikov, and a futer showdown with Manny Pacquiao is possible if the Filipino icon wins his fourth fight with Juan Manuel Marquez.

Manny Pacquiao will make his seventh appearance on HBO's 24/7 series on Nov. 17 in advance of his fourth bout against Juan Manuel Marquez.

Rapper 50 Cent has turned in an application for "SMS Promotions" to the Nevada State Athletic Commission -- and Floyd Mayweather's name isn't mentioned.

Unbeaten Yuriorkis Gamboa could land on the Dec. 8 Manny Pacquiao-Juan Manuel Marquez IV card opposite Miguel Beltran Jr.

Trainer Eric Brown guided middleweight Peter Quillin to a title-winning decision over Hassan N'Dam N'Jikam before coaching WBA junior welterweight titleholder Paulie Malignaggi to a split-decision over Pablo Cesar Cano.

Unbeaten junior welterweight contender Brandon Rios believes he can do to Manny Pacquiao what he did to Mike Alvarado -- score a knockout. 

Micky Ward on referee Pat Russell's stoppage of Brandon Rios-Mike Alvarado: "You'd rather be a punch too early than a punch too late, so I think that the referee did a good job of stopping it."

Brandon Rios on facing either Manny Pacquiao or Juan Manuel Marquez: "You see what happened to Mike Alvarado? I think I could do the same thing to them to too."

WBA junior featherweight titleholder Guillermo Rigondeaux has signed a multi-fight deal with Top Rank and is expected to return to the ring in December.

Everyone is anticipating violence in the junior welterweight clash between Brandon Rios and Mike Alvarado. As far as who wins, RingTV.com sought the opinions of several boxing insiders.

Amir Khan said he and trainer Virgil Hunter "discussed the fact that I am an offensive fighter, but now it is time to be a smart fighter, to win fights with my brain."

Freddie Roach on Manny Pacquiao's motivation for Juan Manuel Marquez: "When I was sitting there with him, he scratched into the cloth on the table, 'We need a knockout to win.' I mean, he spelled that out, and he's never said that to me before a fight in his life."

Robert Garcia and his older brother, Danny, are both respected trainers of champion fighters, but have have been divided by a rift dating back to the early pro days of Victor Ortiz.

Bob Arum on a rematch between Tim Bradley and Lamont Peterson: "We've sent contracts out, but it's not a deal until it's a deal."

Tickets are going fast for the fourth bout between Manny Pacquiao and Juan Manuel Marquez that is scheduled for Dec. 8 at the MGM Grand Garden Arena in Las Vegas.

Advisor Leonard Ellerbe: "Manny Pacquiao can’t tell Floyd Mayweather [expletive]."

Three men have been arrested in connection with the shooting death of former WBO heavyweight titleholder Corrie Sanders.

Freddie Roach on Manny Pacquiao's out-of-court settlement with the Mayewathers: "It's something I don't want to get in the middle of. That's between them." On Amir Khan: "You can't teach a good chin in boxing."