Question: John Alfred "Johnny" Lewis, is an Australian boxing trainer who is best known for working with six World Champions, most notably Jeff Fenech and which Soviet-born Australian former professional boxer who competed from 1992 to 2005?

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Chris Eubank: Christopher Livingstone Eubanks (born 8 August 1966), known as Chris Eubank, is a British former professional boxer who competed from 1985 to 1998.  He held the WBO middleweight and super-middleweight titles, scoring victories over six world champions, and is ranked by BoxRec as the third best British super-middleweight boxer of all time.

Kostya Tszyu: Konstantin Borisovich "Kostya" Tszyu ( ; Russian: Константин Борисович "Костя" Цзю ; born 19 September 1969) is a Soviet-born Australian former professional boxer who competed from 1992 to 2005.  He is a two-time light-welterweight world champion, having also held the undisputed and lineal titles of that division between 2001 and 2005.  Tszyu was an exceptional all-around boxer-puncher who relied heavily on accuracy and timing, and carried formidable punching power; he is often regarded as one of the hardest-punching light-welterweights in the division's history.

Floyd Mayweather Sr.: Floyd Mayweather Sr. (born October 19, 1952) is an American former professional boxer who competed from 1974 to 1990, and has since worked as a boxing trainer.  Fighting at welterweight during the 1970s and 1980s, Mayweather Sr. was known for his defensive abilities and overall knowledge of boxing strategy.  He is the father and former trainer of five-division boxing champion Floyd Mayweather Jr., and is credited for teaching his son the defensive skills that made him a champion.

Ray Wheatley: Ray Wheatley OAM is an Australian boxer.  Wheatley is a former Golden Gloves champion and Australian heavyweight contender also a former IBF supervisor, referee and judge of world championship title fights in Australia, America, South Africa, Philippines, Thailand and Indonesia.  He was a regular guest on Sky Channel KO show during the 1990s with Mathew Brooks and in 2005 and 2006 was a broadcaster on Foxtel "Fenech Fight Night" with Andy Raymond and Colonel Bob Sheridan also "Sports Sunday" with Ken Sutcliffe in 1997 on channel Nine Television Network.  Wheatley was a commentator on ESPN documentary - "Ali The Greatest Of All Time" with Kostya Tszyu, Joe Bugner, Jeff Fenech.  Also on ESPN "Speed and Power" with Grantlee Kieza and Jeff Fenech.  Wheatley was inducted into the Australian Boxing Hall Of Fame in 2012 along with Joe Bugner, Wally Taylor and Robbie Peden.

Wayne Elcock: Wayne Elcock (born 12 February 1974) is a British former professional boxer.  Who was managed by Frank Maloney at the start of his career and promoted by Panix promotions before moving after 2 winning fights to Frank Warren, then later to Mick Hennessy.  Elcock was trained in Leicester to begin with by Jez brogan, before moving to London to be trained by both Frank Maloney and Alan Smith, along with several visits to america to build on his skills, where Wayne worked with Goody Petronelli the trainer of former world champions Marvelous Marvin Hagler and Steve Collins at his famous Brockton gym.  Wayne came back to his home town to team up with Birmingham's most successful boxing trainers brothers Paddy & Tommy Lynch.  Knocking out fellow contender Darren Rhodes in 1 minute 30 seconds in Elcocks homecoming and first ever fight with the Lynch brothers in Birmingham at a sold out Aston Events Centre, this setting up his first attempt at the prestigious British title Lonsdale Belt against Plymouth's Scott Dann (boxer) in the first British title fight to ever be scored by three judges, after defeat Wayne bounced back with two back to back knockout victories one of them a British title eliminator winning by TKO against Scotland's Lawrence Murphy, who was the only other boxer to have beaten Elcock, In Wayne's next contest he faced the English champion Steven Bendall who was to be yet another stopped, but this time over eight punishing rounds and setting up his next contest where he would become the first British boxer to beat long standing British champion Howard Eastman to win the coveted Lonsdale Belt in 2007, Elcock also won the Commonwealth title and the minor WBU World Middleweight title becoming the first Birmingham born fighter to ever hold a version of a World title.  Elcock challenged for the IBF middleweight title against the unbeaten World champion Arthur Abraham on 8 December 2007, losing by a fifth round knockout.  Wayne bounced back from his world title attempt defending the lonsdale belt with a TKO win against local Dudley rival Darren McDermott, before losing the next defence to fellow Birmingham fighter Matthew Macklin in the Battle of Brum Elcock retired at the age of 36 in 2009 to concentrate fully on his other business matters and today Wayne can be found mentoring in schools and behind the counter at Mad Dog's Boxing shop in Boldmere, Birmingham, as well as coaching in the evening at the multi award winning company Wayne Elcock's Box Clever and at his own amateur boxing club Wayne Elcock's Boxing Academy, located in Chelmsley Wood, not far from where he grew up.

Johnny Lewis (boxing trainer): John Alfred "Johnny" Lewis (born 18 March 1944) is an Australian boxing trainer who is best known for working with six World Champions, most notably Jeff Fenech and Kostya Tszyu.

Freddie Roach (boxing): Frederick Steven "Freddie" Roach (born March 5, 1960) is an American boxing trainer and former professional boxer.  Roach is widely regarded as one of the best boxing trainers of all time.  He is the enduring boxing coach of the eight-division world champion Manny Pacquiao, five-time and four-division World Champion Miguel Cotto, former WBC Middleweight Champion Julio César Chávez, Jr., defensive master and three-time world champion James Toney, former UFC Welterweight Champion Georges St-Pierre, as well as top prospects Jose Benavidez, Peter Quillin, and Vanes Martirosyan.  Roach was the trainer of former two-time world champion and notable women's champion Lucia Rijker.  He has also trained former junior welterweight champion Amir Khan.

Jeff Fenech: Jeff Fenech (born 28 May 1964) is a retired Australian professional boxer.  He won world titles in three-weight divisions, and is best known for his trilogy with Ghanaian boxing legend Azumah Nelson.  Fenech was trained by renowned Sydney-based trainer Johnny Lewis.  He is currently a boxing trainer himself.

Robert Garcia (American boxer): Roberto Garcia Cortez (born January 29, 1975), best known as Robert Garcia, is an American former professional boxer who competed from 1992 to 2001, and held the IBF junior lightweight title from 1998 to 1999.  He has since worked as a boxing trainer, and was voted Trainer of the Year by "The Ring" magazine in 2011, and by the Boxing Writers Association of America in 2012.  Garcia is the older brother of professional boxer Mikey Garcia, who himself is a former junior lightweight world champion.

Kenny Adams: Kenneth "Kenny" Adams (born September 25, 1940) is an American professional boxing trainer and a former amateur boxer.  Adams is a highly respected boxing trainer, having been inducted into the Missouri Sports Hall of Fame in 2010.  Adams is a pioneer in boxing, having been the first American trainer to implement strength training.  He is also the first African-American selected as head coach of the American national boxing team.  Adams brings such a strict disciplinarian training style that the eight-time, five-division World champion Floyd Mayweather, Jr. refused to work with him.  In 1999, the multiple-time World champion Wladimir Klitschko asked Adams to assist him in properly turning over his fist on the left hook for power.  In 2005, eight-division World champion Manny Pacquiao requested to train with Adams, but Adams declined to aid to his ill wife at the time.

Supporting paragraphs: Johnny Lewis (boxing trainer) Kostya Tszyu
Answer: Kostya Tszyu