Question: The light heavyweight champion Ronald Johnson is known for fighting and promoting big boxing events that featured which Cuban American former professional boxer who won a gold medal as an amateur at the 1992 Olympics?

Context articles: Shannon Ritch
Joel Casamayor
Guy Waters
Neil Simpson (boxer)
Ray Mercer
Brent Kosolofski
Mark Rowe (boxer)
Johnny Pritchett
Ronald Johnson (boxer)
Crawford Ashley

Shannon Grey Ritch (born September 27, 1970) is an American professional mixed martial artist, boxer, professional wrestler and kickboxer, known for being the former Gladiators Challenge Heavyweight Champion and KOTC Middleweight Champion also current RUF Interim Heavyweight Champion and IFC Middleweight Champion.
 A professional competitor since 1998, Ritch has competed for the MFC, Pancrase, K-1, PRIDE, Rebel Fighting Championship, King of the Cage and the WEC.
 Ritch has also has been featured in two episodes of Walker, Texas Ranger as a Biker Gang Member and a character named Knight, Choke in 2011 as an extra, CSI Las Vegas as Thug #2, an episode of iCarly as a MMA Fighter, an episode of Numbers in 2010, an episode of Ultimate Soldier Challenge on the History Channel representing a military contracting company and most recently in 2017 the direct to DVD film, directed by Robert Parham, Bullets, Blades and Blood and upcoming in 2018 No Way Out directed by Jeffrey D. Parker.
 Shannon claims he has over 200 professional MMA fights 112 wins, 88 losses and 2 draws, some fights going undocumented and dating back as far as 1991.
 His documented record of fights goes back to 1998 with a record of 56 wins, 81 loses, and 4 draws.
 Shannon also holds a 2-1 record in professional boxing and a 25-2 record in bare knuckle boxing with all of his wins coming by way of knockout, in 2017 he was inducted into the Bare Knuckle Boxing Hall of Fame and also plans to round out his boxing career in 2018 against boxing superstar Bobby Gunn.
 Ritch is also an occasional professional wrestler, recently in mid 2017 main eventing a card in Guyana.
 Shannon has also found success as a grappler winning multiple NAGA, Grapplers Quest and Abu Dhabi Combat Club competitions, most recently winning a gold medal in the super heavyweight division at the Grand Canyon 2017 BJJ Open in Arizona and a silver medal at the '17 Arizona State BJJ Championships.
 Ritch is also an avid golf player, winning 1st place in many state and pro am competitions held within his native Arizona as recent as 2017.
Joel Casamayor Johnson (born July 12, 1971) is a Cuban American former professional boxer who competed from 1996 to 2011.
 He is a two-weight world champion, having held the WBA super featherweight title from 2000 to 2002; and the WBC, "Ring" magazine, and lineal lightweight titles between 2006 and 2008.
 As an amateur, Casamayor won a gold medal in the bantamweight division at the 1992 Olympics, after which he defected to the United States on the eve of the 1996 Olympics.
Guy "Arc Angel" Waters ( (1964--) 25 1964 (age (2017)-(1964)-((11)<(01)or(11)==(01)and(30)<(25)) ) ) is an Australian professional welter/light middle/middle/super middle/light heavy/cruiserweight boxer of the 1980s, 1990s and 2000s who won the New South Wales State (Australia) light heavyweight title, Australian light heavyweight title, Oriental and Pacific Boxing Federation (OPBF) light heavyweight title, Australasian Light Heavyweight Title, World Boxing Federation (WBF) light heavyweight title, International Boxing Federation (IBF) Pan Pacific super middleweight title, Oriental and Pacific Boxing Federation (OPBF) super middleweight title, and Commonwealth light heavyweight title, and was a challenger for the WBC light heavyweight title against Dennis Andries, World Boxing Association (WBA) World light heavyweight title against Virgil Hill, World Boxing Council (WBC) cruiserweight title against Juan Carlos Gómez, and Commonwealth super middleweight title against David Starie, his professional fighting weight varied from 167+1/2 lb , i.e. super middleweight to 185+1/4 lb , i.e. cruiserweight.
Neil "Simmo" Simpson ( (1974--) 23 1974 (age (2017)-(1974)-((11)<(01)or(11)==(01)and(30)<(23)) ) ) born in London, now based in Coventry, is an English professional light heavy/cruiser/heavyweight boxer of the 1990s and 2000s, who won the British Boxing Board of Control (BBBofC) Midlands Area light heavyweight title, BBBofC British light heavyweight title, British Masters Cruiserweight title, and Commonwealth light heavyweight title, and was a challenger for the International Boxing Organization (IBO) Inter-Continental light heavyweight title against Darren Corbett, European Boxing Union (EBU) light heavyweight title against Yawe Davis, World Boxing Union (WBU) light heavyweight title against Tony Oakey, and BBBofC British light heavyweight title against Peter Oboh, his professional fighting weight varied from 169 lb , i.e. light heavyweight to 216 lb , i.e. heavyweight.
Raymond Anthony "Ray" Mercer (born April 4, 1961) is an American former professional boxer, kickboxer, and mixed martial artist.
 In boxing he competed from 1989 to 2008, and held the WBO heavyweight title from 1991 to 1992.
 As an amateur he won a gold medal in the heavyweight division at the 1988 Summer Olympics.
 As a mixed martial artist, Mercer is known for scoring an upset one-punch knockout victory over former UFC heavyweight champion Tim Sylvia in 2009.
Brent "Koko" Kosolofski ( (1964--) 22 1964 (age (2017)-(1964)-((11)<(08)or(11)==(08)and(30)<(22)) ) ) is a Canadian amateur light heavyweight and professional light heavy/cruiser/heavyweight boxer of the 1980s and '90s who as an amateur represented Canada at light heavyweight in the 1986 World Amateur Boxing Championships in Reno, Nevada, United States, losing to John Beckles of England, represented Canada and won the bronze medal at light heavyweight in the Boxing at the 1986 Commonwealth Games, in Edinburgh, Scotland, losing to eventual gold medal winner James Moran of England, and represented Canada at light heavyweight in the Boxing at the 1988 Summer Olympics in Seoul, South Korea, losing to Andrea Magi of Italy, and as a professional won the Commonwealth light heavyweight title, his professional fighting weight varied from 173 lb , i.e. light heavyweight to 199 lb , i.e. heavyweight.
Mark Rowe ( (1947--) 21 1947 (age (2017)-(1947)-((11)<(07)or(11)==(07)and(30)<(21)) ) ) born in Camberwell is an English amateur light middleweight and professional light middle/middle/light heavyweight boxer of the 1960s and '70s who as an amateur was runner-up for the 1966 Amateur Boxing Association of England Light middleweight (71 kg) title, against Thomas "Tom" Imrie (Bucchleuch BC), boxing out of Fitzroy Lodge ABC, and won a gold medal at Light Middleweight beating Thomas "Tom" Imrie (Scotland) in the Boxing at the 1966 British Empire and Commonwealth Games in Kingston, Jamaica, and as a professional won the British Boxing Board of Control (BBBofC) British middleweight, and Commonwealth middleweight title, and was a challenger for the BBBofC British middleweight title against Bunny Sterling, his professional fighting weight varied from 154 lb , i.e. light middleweight to 162 lb , i.e. light heavyweight.
Johnny Pritchett (born 15 February 1943) is an English amateur welterweight and professional light middle/middle/light heavyweight boxer of the 1960s and '70s, and boxing manager of the 1970s and '80s, who as an amateur won the Amateur Boxing Association of England (ABAE) 1959 Junior Class-A title against B. Ford (St Peters ABC), boxing out of Bingham & District ABC, won the 1962 Amateur Boxing Association of England welterweight title, against Harry Dean (Oxford YMCA), boxing out of Bingham & District ABC, won the 1963 Amateur Boxing Association of England welterweight title, against Ralph Charles (West Ham ABC), boxing out of Bingham & District ABC, and represented England and won the silver medal at welterweight in the Boxing at the 1962 British Empire and Commonwealth Games in Perth, Australia, losing to Wallace Coe of New Zealand, and as a professional won the British Boxing Board of Control (BBBofC) British middleweight title, and British Commonwealth middleweight title, and was a challenger for the European Boxing Union (EBU) middleweight title against Juan Carlos Durán, his professional fighting weight varied from 153+1/4 lb , i.e. light middleweight to 162+1/2 lb , i.e. light heavyweight.
 Johnny Pritchett managed; Dave Needham, Howard Hayes, Johnny Cheshire, and Dave Symonds.
Ronald Johnson is a Light heavyweight champion from Cleveland, Ohio, USA.
 Ronald have won 15 out of 16 fights in his career.
 Ronald Johnson is known both for fighting and promoting big boxing events that featured Zab Judah, Joel Casamayor, Michael Grant, Hector Camacho Jr. and many other notable names in the sport.
 After a five-year hiatus from the ring he is back and focused on boxing.
Crawford "Chilling" Ashley (born Gary Crawford, 20 May 1964 in Leeds is an English professional super middle/light heavy/cruiser/heavyweight boxer of the 1980s, '90s and 2000s, who won the British Boxing Board of Control (BBBofC) Central Area light heavyweight title, BBBofC British light heavyweight title, European Boxing Union (EBU) light heavyweight title (twice), and Commonwealth light heavyweight title (twice), drew with Yawe Davis for the vacant European Boxing Union (EBU) light heavyweight title, and was a challenger for the European Boxing Union (EBU) light heavyweight title against Graciano Rocchigiani, World Boxing Association (WBA) World super middleweight title against Michael Nunn, World Boxing Association (WBA) World light heavyweight title against Virgil Hill, and World Boxing Union (WBU) cruiserweight title against Sebastiaan Rothmann, his professional fighting weight varied from 163 lb , i.e. super middleweight to 211 lb , i.e. heavyweight.