Sergio Martinez

Julio Cesar Chavez Jr. once helped his father through one of the lowest points of his life, and now the Mexican legend is there to back his son up on his toughest day.

Undefeated welterweight prospect Jessie Vargas moved to 20-0 with a unanimous decision over Aaron Martinez in an ESPN2-televised main event from the Hard Rock Hotel in Las Vegas on Thursday.

WBA junior featherweight titleholder Guillermo Rigondeaux will defend his crown against Roberto Marroquin on Saturday night.

Jesse Vargas will be in his third straight welterweight bout against Aaron Martinez on Thursday.

Advisor Michael Koncz has confirmed that a deal is near to match Manny Pacquiao against Juan Manuel Marquez for a fourth time.

Julio Cesar Chavez Jr. and Sergio Martinez at the final press conference before their Sept. 15 fight at the Thomas & Mack Center in Las Vegas.

WBA junior featherweight beltholder Guillermo Rigondeaux is being allowed to defend his crown against Robert Marroquin on the Chavez-Martinez undercard on Saturday night.

WBC middleweight titleholder Julio Cesar Chavez Jr. defends his eccentric training methods in advance of Saturday night's clash with RING champion Sergio Martinez. 

Lou DiBella says he'll be nervous if his fighter, Sergio Martinez, goes the distance with Julio Cesar Chavez Jr. on Saturday. Boxing writers and odds makers favor Martinez to win but DiBella knows Chavez, the crowd favorite, is favored by WBC president Jose Sulaiman.

WBC middleweight titleholder Julio Cesar Chavez Jr.s base purse of $3 million is more than twice that of RING champion Sergio Martinez, who will pocket $1.4 million for Saturday night's fight.

RingTV's Bill Emes spoke to Gennady Golovkin and his trainer Abel Sanchez after the middleweight sensation's impressive TKO of Grzegorz Proksa. Golovkin and Sanchez give their thoughts on his HBO debut and future fights.

WBC junior middleweight titleholder Saul "Canelo" Alvarez and Josesito Lopez will be featured on Showtime in advance of their Sept. 15 bout at the MGM Grand in Las Vegas.

Julio Cesar Chavez Jr. was told by his father, Julio Sr., and his grandmother that he had to win every one of his first 10 professional fights or retire from the sport. 

Sergio Martinez says he would make adjustments in the American amateur boxing system if he were given the power to do so.

WBC junior featherweight belt-holder Abner Mares has a defense against Anselmo Moreno on Oct. 27.

Julio Cesar Chavez Jr. insists that discipline problems are behind him, that he doesn't care about rival Mexican star Saul "Canelo" Alvarez, and that the time is right to beat middleweight champ Sergio Martinez, who he fights on Sept. 15. 

A judge has ruled that Guillermo Rigondeaux can not defend his WBA junior featherweight belt against Robert Marroquin on Sept. 15 because the fight was made by Top Rank without the consent of Rigondeaux's manager, Gary Hyde. 

Promoter Lou DiBella is considering the cancelation of all media appearances by RING middleweight champion Sergio Martinez to promote his Sept. 15 bout with Julio Cesar Chavez Jr. in the wake of threats against the fighter.

Nonito Donaire on facing Toshiaki Nishioka: "You have to find the fighters who can challenge you and who will put you at risk. You put yourself at risk of losing, at risk of getting hurt, at risk of losing your life. That's all part of boxing."

IBF and WBO junior featherweight beltholder Nonito Donaire portrays a poor man driven by love in the movie Palad Ta Ang Nagbuot, which he recently completed filming in his native Philippines.

Sergio Martinez to Julio Cesar Chavez Jr.: "I'm going to beat you up. I'm going to hurt you."

An attorney for WBA junior featherweight beltholder Guillermo Rigondeaux has filed an emergency motion which seeks to lift an injunction against his fighting Robert Marroquin on Sept. 15.

Notre Dame graduate and light heavyweight prospect Mike Lee will face Paul Harness on the undercard of the Julio Cesar Chavez Jr.-Sergio Martinez main event on Sept. 15.

Sergio Martinez's charitable deeds outside of the ring serve as a sharp contrast to his brutal, razor-like efficiency inside of it.

Julio Cesar Chavez Jr: "It was my dream to become a world champion. That’s why I decided to become a professional fighter ... Of course, I now like hearing the ring announcer say, 'The winner, and still...'" 

Fans bemoan the slow month of August, look forward to the Nonito Donaire-Toshiaki Nishioka showdown, ponder THE RING's pound-for-pound rankings, and wonder which U.S. Olympians will excel as pros.   

THE RING editor Michael Rosenthal spoke to Saul Alvarez about the WBC 154-pound titleholder's Showtime-televised Sept. 15 defense against Josesito Lopez and going head-to-head with Mexican rival Julio Cesar Chavez's PPV fight with Sergio Martinez in this exclusive interview.

WBC middleweight titleholder Julio Cesar Chavez Jr. weighs 176 pounds 30 days prior to making his defense against RING champion Sergio Martinez, who is currently tipping the scales at 174.

Showtime's Stephen Espinoza once said of co-existing with HBO that "there is room for two very successful, very active networks in boxing."  

WBC middleweight titleholder Julio Cesar Chavez Jr. has looked impressive against sparring partners in preparation for next month's clash with RING champion Sergio Martinez.

Unbeaten welterweight prospect Jessie Vargas will debut under Top Rank against Aaron Martinez on Sept. 13 in Las Vegas.

HBO's 24/7 series will debut on Sept. 1 and will detail the events leading up to the Sept. 15 clash between Julio Cesar Chavez Jr. and RING middleweight champion Sergio Martinez.

A WBO junior lightweight bout between Roman Martinez and Miguel Beltran Jr. will be on the undercard of the HBO Pay Per View-televised main event featuring RING middleweight champ Sergio Martinez and WBC beltholder Julio Cesar Chavez Jr. on Sept. 15. 

WBA junior featherweight titleholder Guillermo Rigondeaux will pursue his fourth straight knockout victory against Robert Marroquin on Sept. 15 in Las Vegas.

Check out how Julio Cesar Chavez Jr. looks as he trains at the Wild Card Boxing Club in Hollywood, Calif., for his much-anticipated collision with RING middleweight champion Sergio Martinez on Sept. 15.

RING middleweight champion Sergio Martinez and Julio Cesar Chavez Jr. will answer questions, face-to-face, with HBO's Max Kellerman in a show that airs on Aug. 25 in advance of their Sept. 15 clash at the Thomas and Mack Center in Las Vegas.

Robert Guerrero is jumping two divisions to make his welterweight debut against rugged Selcuk Aydin.

RING middleweight champion Sergio Martinez training in Oxnard, Calif., for his Sept. 15 fight against WBC titleholder Julio Cesar Chavez Jr.

Richard Schaefer: "Adrien Broner is obviously going to be one of the superstars in the sport of boxing."

Paul Williams has accepted in invitation from WBC junior middleweight beltholder Saul "Canelo" Alvarez to be ringside for his defense against Josesito Lopez on Sept. 15 at the MGM Grand in Las Vegas.

Vanes Martirosyan could face Erislandy Lara in a junior middleweight eliminator bout for the right to face WBC beltholder Saul "Canelo" Alvarez.

Trainer Freddie Roach does not believe that Amir Khan's fourth-round knockout loss had anything to do with Khan's parting with strength and conditioning guru Alex Ariza, a former assistant to Roach.

Super middleweight contender Edwin Rodriguez has a big fight with Jason Escalera on Sept. 29 -- six years to the day from when his twins, Serena and Edwin Jr., barely survived their premature births.

The random tests of urine samples taken from middleweights Sergio Martinez and Julio Cesar Chavez Jr. on July 11 have returned negative in advance of their HBO-televised clash on Sept. 15. 

Freddie Roach on his conversation with Amir Khan: "I had a very nice breakfast with Shah Khan and Amir. So we had a nice meeting yesterday, and no one talked about getting fired."

Fans have a choice of two high-profile boxing shows to watch on Sept. 15, but Saul Alvarez and Josesito Lopez, who will headline a Showtime-televised card on that date, are only focused on their fight, which they promise will deliver action.

Sergio Martinez on Julio Cesar Chavez Jr.: "He won’t be eating solid food with the few teeth remaining after I get through with him."

The results of random urine test samples taken from Julio Cesar Chavez Jr. and Sergio Martinez on July 11 are expected sometime this week or early next week, according to Nevada State Athletic Commission executive director Keith Kizer.