Lucas Martin Matthysse (born September 27, 1982 in Trelew, Chubut, Argentina) is an Argentine professional boxer in the Light Welterweight division and is the current WBO Inter-Continental Light Welterweight champion. Lucas is the younger brother of professional boxer Walter Matthysse.

During his amateur career, Matthysse fought in the 2003 Pan American Games at Santo Domingo, Dominican Republic. Where he went onto stop Colombia's Breidis Prescott in the just the first round.

Lucas has faced Marcos Maidana four times in the amateurs. Marcos won three times and the fourth fight was a draw.

In June 2004, Lucas won his pro debut against Leandro Almagro, on a card that also featured his brother Walter.

Matthysse vs. Judah

On November 6, 2010 Matthysse lost a very disputed split decision against former world champion Zab Judah, as the main event of an HBO card. Judah began the busier fighter, using the jab and trying to land uppercuts for the first two rounds, while Matthysse worked on the body. In round three, a clash of heads opened a cut outside of the left eye of Judah. Matthysse displayed more aggression and became the aggressor in the third and the fourth round and Judah switched to a defensive tactic. In the next two rounds, the American boxer picked up the pace, beginning to land more combinations. Judah continued to box throughout the ninth round but Matthysse began to show more power in the tenth, focusing on the head of his opponent and knocking down the American boxer after a hard right hand to the jaw. Judah got up but he was hurt, and the Argentine fighter tried to press the attack after the knockdown. Two judges scored the fight 114–113 for Judah, while the other judge scored it 114–113 for Matthysse.

Zabdiel "Zab" Judah (born October 27, 1977) is an American professional boxer. Judah has won five world titles between the light welterweight and welterweight divisions and is a former Undisputed World Welterweight Champion.

Judah began boxing at the age of six and compiled an amateur record of 110–5. He was a two-time US national champion and three-time New York Golden Gloves Champion. He also won the 1996 PAL National Championship. Judah attempted to earn a spot on the 1996 US Olympic boxing team. After defeating Ishe Smith and Hector Camacho, Jr., Judah lost to David Díaz in the finals, preventing Judah from qualifying for the Olympic boxing team.

Judah made his professional debut as an 18 year old on September 20, 1996, in Miami, Florida and defeated Michael Johnson by technical knockout in the second round. After winning bouts over George Crain and Omar Vasquez in May and June 1997 respectively, Judah closed the year with first-round knockouts over Cesar Castro, James Salava and Ricardo Vasquez. Judah began 1998 by knocking out Steve Valdez in the first round in January. Valdez, who had never been stopped in his career, went down four times in the fight. In March, Judah and his opponent, Esteban Flores, accidentally clashed heads in the second round, causing a cut to open above Flores' eye and the bout was stopped in round three as Flores could not continue because of the cut. The bout went into the books as a technical draw, but the result was changed to a no contest in May 1998. On April 14, 1998, Judah battered two-time Dominican Republic champion Angel Beltre, stopping him in the second round.

For the 1930s boxer Eligio Sardiñas Montalvo, better known by the nickname "Kid Chocolate," see Kid Chocolate.

Peter Quillin (born June 22, 1983 in Chicago, Illinois) is an undefeated Cuban-Americanboxer in the Middleweight division. He's trained by 4-time trainer of the year Freddie Roach. Quillin is signed to Oscar de la Hoya's Golden Boy Promotions. He is not to be confused with Kid Chocolate, the late Cuban boxer with whom Quillin shares nicknames.

Peter was born in Chicago, Illinois, but grew up in Grand Rapids, Michigan. During his amateur boxing career he had eight fights.

Quillin's father was born and raised in Cuba. Peter was given the nickname of former World Champion, Cuban Kid Chocolate. Due to their physical resemblance and Quillin's Cuban heritage.

The tall aggressive Quillin turned pro in New York and signed with Cedric Kushner. He had most of his fights on television flaunting one-punch knockout power in either hands that build him a huge following.

In April 2008, Quillin dominated former contender Antwun Echols.

Adrien Broner (Born 28 July 1989) is an American Professional boxer, based in Cincinnati, Ohio, United States. Adrien has been featured in the top ten of the Ring Magazine rankings for the Junior Lightweight division.

Broner had a successful amateur career of over 300 fights

Broner turned professional on 31 May 2008 and scored three consecutive first round knockouts against Allante Davis, David Warren Huffman and Ramon Flores. In Broner's fourth fight he faced Terrance Jett at the MGM Grand in Las Vegas on the undercard of the Ricky Hatton vs Paulie Malignaggi fight. Broner defeated Jett with a stoppage in the sixth round. In Broner's fifth professional fight and final of 2008, he faced Scott Furney on the undercard of Oscar De La Hoya vs Manny Pacquiao fight. Broner stopped Furney in the first round bringing his record to 5(5)-0-0.

In January 2009 he was forced to go the distance with Jose Alfredo Lugo, at the Staples Center on the undercard of Shane Mosley vs Antonio Margarito. Broner returned to the ring in March scoring a unanimous decision over Eric Ricker. Three weeks later Broner stopped Angel Rodriguez in the fourth round. In his eighth fight Broner stepped up to eight rounds in a hard fought fight with Fernando Quintero, pulling out a majority decision. In June at the Staples Center Broner met Australian William Kickett, scoring a sixth round knockout. On the Juan Díaz vs Paul Malignaggi undercard in Houston Broner make short work of Edgar Portillo, victory coming via stoppage in the first round. Broner defeated Henry White Jr via KO in September and finished his busy year against Tommy Atencio. Broner stopped Atencio in the first round, for the sixth time in thirteen fights. Broner then had a fourth round stoppage victory over Roberto Acevedo. Broner fought 4 more times in 2010 against Rafael Lora, Carlos Claudio, Guillermo Sanchez, and Ilido Julio, stopping all of them.

Abner Mares Martínez (born November 28, 1985 in Guadalajara, Jalisco, Mexico) is a Mexican undefeated professional boxer. Mares is the current WBC Super Bantamweight Champion. Abner medaled repeatedly in international amateur tournaments for Mexico. Mares grew up in the city of Hawaiian Gardens, California.

Although Mares is undefeated, the legitimacy of his record is in question due to multiple controversial victories and decisions he has received, such as against the likes of Yonnhy Perez, Vic Darchinyan and Joseph Agbeko.

Mares was born in Guadalajara, Jalisco, Mexico and at age seven his family moved to the city of Hawaiian Gardens, California. At age fifteen he was sent back to Mexico by his father.

As an amateur, Mares compiled a record of 112-8 with 84 KOs. Mares won the U17 World Championships and the bantamweight gold medal at the Central American games 2002 beating Juan Manuel López and the silver medal in the same division in 2003 at the Pan American Games in Santo Domingo. At the Junior World Championships 2004, he finished second losing to Aibek Abdimomunov. He participated in the 2004 Summer Olympics for his native country. There he was beaten in the first round of the Bantamweight (54 kg) division by Hungary's Zsolt Bedák in a highly controversial decision.