julio cesar chavez jr.

Should Floyd Mayweather Jr. get beyond a May 4 date with Robert Guerrero at the MGM Grand, he could return to that site on Sept. 14 and go head-to-head with a potential clash between Tim Bradley and Juan Manuel Marquez.

A return bout between Sergio Martinez and Julio Cesar Chavez Jr. would have to include Olympic-style drug testing and take place either in Las Vegas, Atlantic City or New York, according to Martinez's advisor.

Mexican middleweight prospect Gilberto Ramirez takes on Colombian veteran Dionisio Miranda in the co-featured fight to the WBC 122-pound title bout between Victor Terrazas and Cristian Mijares on Saturday in Mexico City.

Saturday's RING junior middleweight championship clash of unbeatens Saul "Canelo" Alvarez and Austin Trout is another bout that is too close to call during what is shaping up as a year of upsets.

Middleweight contender Matthew Macklin claims that he will handle unbeaten WBA titleholder Gennady Golovkin in similar fashion to how Bernard Hopkins knocked out then-undefeated Felix Trinindad in the 12th round.

Unbeaten welterweight contender Kell Brook has suffered yet another foot injury that could jeopardize his scheduled challenge to IBF beltholder Devon Alexander for the third time.

Top Rank CEO Bob Arum said that in the next few days he'll be meeting with fighters and their teams in New York, with the goal of selecting Manny Pacquaio's September opponent no later than Sunday.

Junior middleweight contender Carlos Molina could challenge IBF beltholder Ishe Smith in July, according to his promoter, Leon Margules.

Sergio Martinez on flooding in his native Argentina: "I want to send my deepest condolences and all of my sympathy to the people of Buenos Aires. What has happened there is terrible."

Junior middleweight contender Erislandy Lara: "If I could pick my next three fights, it would first start with the winner of the fight between Canelo Alvarez-Austin Trout, and then I would want to fight Sergio Martinez or Floyd Mayweather."

RING super middleweight champ Andre Ward broke down Mike Alvarado's thrilling rematch victory over Brandon Rios for RingTV.com. Ward also talked about his return to the ring and potential fights with Julio Cesar Chavez Jr. and Gennady Golovkin.

Unbeaten super middleweight contender Edwin Rodriguez will face Ezequiel Osvaldo Maderna as part of Saturday night's Monte Carlo Million Dollar Super Four tournament.

Top Rank CEO Bob Arum would like to "mix-and-match" Brandon Rios, Manny Pacquiao, Juan Manuel Marquez and Tim Bradley over the course of the next few months.

Bob Arum: "If the Nevada Commission has one standard of punishment for Americans, and one standard of punishment for Mexicans, then they should say that."

The Nevada State Athletic Commission on Wednesday voted 3-2 to suspend and fine lightweight prospect Mickey Bey, of Cleveland, for having tested positive for high levels of testosterone.

HBO's Ken Hershman has severed ties with Golden Boy "to focus our efforts and resources on those strategic relationships where we better share common goals and business philosophies."

It appears that Adrien Broner will fight Paul Malignaggi on HBO on June 22 and that Julio Cesar Chavez Jr. will return on the same network on June 29. It was thought that Broner and Chavez were targeting the same June 22 date.

Unbeaten featherweight prospect Gary Russell Jr. claims he has been pursued by promoter Curtis Jackson, who is also known as the rapper 50 Cent. Russell is managed by Al Haymon and has a working relationship with Golden Boy Promotions.

Saul Alvarez says he's focused on his 154-pound title unification bout with Austin Trout on April 20, but he also says wants to headline a big show on Sept. 14 even if it competes with Floyd Mayweather's planned pay-per-view date.

Former WBC middleweight beltholder Julio Cesar Chavez Jr. can resume his fighting career after June 15, in accordance with a nine-month suspension handed down on Thursday by the Nevada State Athletic Commission as a result of his positive drug test for marijuana use.

Referee Tony Weeks on stopping IBF junior welterweight beltholder Lamont Peterson's triumph over ex-titleholder Kendall Holt in the eighth round: "Some fighters just have too much heart, and we have to save them from themselves."

Referee Tony Weeks will make his East Coast debut with Friday night's Lamont Peterson-Kendall Holt fight at The D.C. Armory in Washington, D.C.

Unbeaten lightweight prospect Mickey Bey has tested positive for high levels of testosterone following his third-round knockout of Robert Rodriguez on Feb. 2 in Las Vegas, Nev.

Veteran referee Tony Weeks will work Friday night's title bout between IBF junior welterweight beltholder Lamont Peterson and ex-beltholder Kendall Holt.

RING middleweight champion Sergio Martinez is featured in Argentina's most recent edition of Rolling Stone magazine. Martinez defends his title against Martin Murray on April 27 in Argentina.

Julio Cesar Chavez Jr.'s case regarding his positive drug test for marijuana metabolites following September's loss to Sergio Martinez will be heard on Feb. 28, according to Nevada State Athletic Commission executive director Keith Kizer.  

Junior middleweight contender Calos Molina will try to rebound from his disappointing DQ loss to James Kirkland last year - the latest in a long line of setbacks - when he faces former titleholder Cory Spinks in the main event of tonight's Friday Night Fights.

WBO middleweight titleholder Peter Quillin is in the mix of a division that includes RING/WBC champ Sergio Martinez, WBA and IBF counterparts Gennady Golovkin and Daniel Geale, as well as ex-beltholder Julio Cesar Chavez Jr.

Attorneys for Julio Cesar Chavez have requested a maximum six-month suspension and a $10,000 fine as a penalty for his positive drug test for marijuana following September's loss to Sergio Martinez. Chavez can be suspended for up to a year and fined the entire amount of his $3 million purse, or a combination of both.

Julio Cesar Chavez's positive post-fight drug test case will be reviewed in February; Plus, a Paul Williams update and a look at 6-foot-5 junior middleweight prospect Alantez Fox.

Attorneys for former WBC middleweight titleholder Julio Cesar Chavez Jr. will address his positive post-fight drug test for marijuana as well as his future before the Nevada State Athletic Commission on Tuesday. 

Unbeaten middleweigt beltholder Gennady Golovkin on fighting Gabriel Rosado: "First round, hard work, hard fight. Second round, hard work... by the fifth round, I will knock him out."

Trainer Abel Sanchez calls WBA middleweight titleholder Gennady Golovkin a "Mike Tyson-esque kind of individual that goes out there to kind of search and destroy."

Tim Bradley-Lamont Peterson II and the anticipated Brandon Rios-Mike Alvarado rematch could be in the works for March, according to Top Rank CEO Bob Arum.

Juan Manuel Marquez's sixth-round knockout of Manny Pacquiao will be among "Boxing's Best" on HBO, a series comprised of seven major showdowns to be featured over five days beginning on Christmas.

RING middleweight champion Sergio Martinez will face Martin Murray on April 27 with an eye toward a rematch with Julio Cesar Chavez Jr. in September.

Andre Berto was treated for injuries and released from Loma Linda University Medical Center following Saturday night's loss to Robert Guerrero, and is resting with family at his home in Winter Haven, Fla.

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."

Former world titleholder Roy Jones Jr. will take over for the late Emanuel Steward as HBO's analyst for World Championship Boxing and its Pay Per View broadcasts for the rest of 2012.

RING middleweight champion Sergio Martinez is recovering from knee surgery with an eye toward fighting on April 27 in his native Argentina.  

Sergio Martinez had surgery to repair torn ligaments in his right knee. THE RING middleweight champ wants to make a defense of his belts on April 27 and then face Julio Cesar Chavez in a rematch on Sept. 14.

RING middleweight champion Sergio Martinez will have surgery to repair ligament damage in his right knee which occurred during September's unanimous decision victory over Julio Cesar Chavez Jr., whom he hopes to face in a rematch on Sept. 14. 

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.

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.

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.

The big fights keep lining up and keep falling through for unbeaten featherweight contender Mikey Garcia, but he's still hungry for a showcase against the likes of Yuriorkis Gamboa.

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."

WBA junior featherweight beltholder Guillermo Rigondeaux is close to signing with Top Rank for an appearance on a Dec. 15 card featuring WBO welterweight titleholder Tim Bradley.

Andre Ward ranks No. 2, pound-for-pound, ahead of Manny Pacquiao, according to Yahoo! Sports and ESPN, and is at No. 3 in THE RING ratings, having surpassed Sergio Martinez in all three polls.