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The World Boxing Council (WBC) is an international professional boxing organization. It is among the four major organizations which sanction professional boxing bouts, alongside the World Boxing Association (WBA), International Boxing Federation (IBF) and World Boxing Organization (WBO).
The World Boxing Organization (WBO) is an organization which sanctions professional boxing bouts. It is recognized by the International Boxing Hall of Fame (IBHOF) as one of the four major world championship groups, alongside the World Boxing Association (WBA), World Boxing Council (WBC), and International Boxing Federation (IBF). The WBO's headquarters are located in San Juan, Puerto Rico.
Nigel Gregory Benn is a British former professional boxer who competed from 1987 to 1996. He held world championships in two weight classes, including the WBO middleweight title in 1990 and the WBC super-middleweight title from 1992 to 1996. At the regional level, he held the Commonwealth middleweight title from 1988 to 1989.
Stephen Collins is an Irish former professional boxer who competed from 1986 to 1997. Known as the Celtic Warrior, Collins is the most successful male Irish boxer in recent professional boxing history, having held the WBO middleweight and super-middleweight titles simultaneously and never losing a fight as champion.
Mikkel Kessler is a Danish former professional boxer who competed from 1998 to 2013. He held multiple super-middleweight world championships, including the WBA title three times between 2004 and 2013, and the WBC title twice between 2006 and 2010.
In professional boxing, the undisputed champion of a weight class is the boxer who holds world titles from all of the major sanctioning organisations simultaneously. There are currently four major sanctioning bodies: WBA, WBC, IBF and WBO. There were many undisputed champions before the number of major sanctioning bodies increased to four in 2007, but there have only been 13 boxers to hold all four titles simultaneously. As of January 2023, Canelo Álvarez, Jermell Charlo and Devin Haney are undisputed champions in the super middleweight, light middleweight and lightweight divisions respectively.
Jeffrey Scott Lacy is an American former professional boxer who competed from 2001 to 2015. He held the IBF super middleweight title from 2004 to 2006, and the IBO super middleweight title from 2005 to 2006. Lacy rose to prominence in the early to mid-2000s as a feared puncher in the division, with his physique and knockout record making him one of boxing's top-rated prospects at the time.
Avetik Abrahamyan, best known as Arthur Abraham, is an Armenian-German former professional boxer who competed from 2003 to 2018. He held multiple world championships in two weight classes, including the IBF middleweight title from 2005 to 2009, and the WBO super-middleweight title twice between 2012 and 2016.
Charles Brewer, is a retired professional boxer in the Super Middleweight (168lb) division.
Sakio Bika is a Cameroonian-born Australian professional boxer. He held the WBC super-middleweight title from 2013 to 2014, and previously the IBO super-middleweight title from 2008 to 2010. In 2015 he challenged once for the unified light-heavyweight world title, and in 2007 won the third season of The Contender reality TV series.
Kelly Robert Pavlik is an American former professional boxer who competed from 2000 to 2012. He won the unified WBC, WBO, Ring magazine and lineal middleweight titles by defeating Jermain Taylor in 2007, and made three successful defenses before losing them to Sergio Martínez in 2010.
Joseph William Calzaghe is a Welsh former professional boxer who competed from 1993 to 2008. He held multiple world championships in two weight classes, including unified and lineal titles at super-middleweight, and the Ring magazine light-heavyweight title.
Terry Lawless was an English boxing manager and trainer who worked in London, most successfully during the 1960s, 1970s and 1980s.
Bernard Hopkins Jr. is an American former professional boxer who competed from 1988 to 2016. He is one of the most successful boxers of the past three decades, having held multiple world championships in two weight classes, including the undisputed middleweight title from 2001 to 2005, and the lineal light heavyweight title from 2011 to 2012.
Sergey Tatevosyan is a Russian former professional boxer who competed from 2000 to 2007.
David Aloua is a New Zealand professional boxer. As an amateur, he competed at the 2010 Commonwealth Games.
Branko Sobot is a Croatian former professional boxer, who held the IBF Inter-Continental middleweight and super middleweight titles and challenged for the WBO World Super middleweight title, losing against Joe Calzaghe by 3rd round TKO.
Rick Thornberry is an Australian former professional boxer who competed from 1985 to 2002. He held the IBO super middleweight title in 1995 and challenged twice for major world championships; the WBO super middleweight title in 1999 and the IBF super middleweight title in 2002.
Dennis Hogan is an Irish professional boxer who is the current IBO Super Welterweight World Champion and has challenged for world championships in two weight classes; the WBO light-middleweight and WBC middleweight titles, both in 2019.
