Kostya Tszyu

He was the only Soviet boxer to win a gold medal at the 1991 World Championships in Sydney. Immediately at the Championships he was approached by local boxing promoters, and he has decided to pass up the 1992 Summer Olympics in favor of a professional career. A week later he had signed with Australian promoter Bill Mordey as his manager and Johnny Lewis as his trainer in Sydney. Tszyu finished his amateur career with 270 fights, 259 wins, 11 losses, no stoppages and no draws. His professional debut was scheduled to take place in January 1992. Mordey described Tszyu as the best boxer he had seen in the past decade.[8]

In 1995, he received his first world title shot when he fought IBF Light Welterweight Champion Jake Rodríguez at Las Vegas, Nevada. Tszyu became world champion by knocking Rodriguez out in the sixth round. He then defended the world title, beating former Super Featherweight and Light Welterweight World Champion Roger Mayweather by a decision in 12, Hugo Pineda by a knockout in 11, Cory Johnson by a knockout in four and Jan Bergman by a knockout in six. After this string of defences, Tszyu became a highly touted world Champion by many boxing magazines, and many articles about him appeared on The Ring, KO Magazine and other American boxing publications.

1997 began for Tszyu when his defense against Leonardo Moro Mas was declared a no contest because Mas' camp protested that the blow that finished their fighter in the first round was actually thrown after referee Joe Cortez had called for a break. Undecided whether it was or was not after Cortez called for a break, the IBF and the Nevada Athletic Commission decided to declare it a no contest instead. For his next bout, however, Tszyu wasn't as lucky, and he lost for the first time, losing by a knockout in ten rounds to Vince Phillips, who also took with that, Tzsyu's world championship.

After beating former world champions Calvin Grove (KO 1) and Rafael Ruelas (KO 9), Tszyu was given another world title try, when the WBC's belt became vacant in 1998 following Oscar De La Hoya's move to the welterweight division. Tszyu found himself twice on the canvas in round one of his fight for the interim belt against Diosbelys Hurtado, but recuperated to beat Hurtado by a knockout in five. He became world champion once again in 1999 by knocking out former world champion Miguel Ángel González in ten, and twice retained it in 2000, beating Arizona's fringe contender Ahmed Santos in eight, and a 38-year-old Mexican legend Julio César Chávez, the former world champion, in six at Phoenix, Arizona. Kostya was interviewed by Ray Wheatley on YouTube in 2011 and stated he regards his win over Miguel Angel Gonzalez as his best ever performance.

Tszyu then began pursuing his wish to unify all the belts. In 2001, he began by facing WBA Champion Sharmba Mitchell, taking the belt by a TKO after seven rounds (Mitchell suffered a knee injury in training, and during the bout). His next fight was against the German Turk, Oktay Urkal. Tszyu finished 2001 by recovering his IBF belt in a unification bout with the current champion Zab Judah, by a knockout in the second round. A small melee inside the ring followed that fight when Judah attacked referee Jay Nady for what he felt was a premature stoppage, reacting by throwing his corner's seat at the referee and even trying to choke Nady with his glove at one point. However, replays clearly show Judah walking on wobbly legs. As a result, Tszyu became the first man in 30 years to unify the belts in the light welterweight division.

Tszyu in 2002 had only one bout, beating the top-ranked contender of all three of his belts, Ben Tackie of Ghana by a decision in twelve rounds. Tszyu lost only one round on only one of the judges scorecards in a masterful display of boxing.

On 19 January 2003, Tszyu began the year by retaining his title against former world champion Jesse James Leija by a knockout in six. After the fight, held in Melbourne, Tszyu announced that fight could be his last in Australia, due to pressure from promoters to fight in the United States (The win against Leija came on the birthday of Tszyu's son.).

His first fight in 2004 was supposed to have been held on 7 February in a rematch against Sharmba Mitchell. It would have been Tszyu's first fight as a professional in Moscow, but Tszyu injured his shoulder during training. He had successful surgery to correct the problem, but the injury further extended his absence from the ring. The WBA stripped Tszyu of his title for choosing to fight Mitchell instead of their regular champion, Vivian Harris, while the WBC stripped Tszyu for refusing to fight their mandatory, Gianluca Branco.[9][10]

On 6 November, he and Mitchell finally had their rematch, with Tszyu knocking Mitchell out once again, this time in three rounds. Tszyu was voted comeback fighter of the year by Ring magazine.

He next fought on 5 June 2005, against British boxer Ricky Hatton, Tszyu lost this fight and his world title by RTD (Referee technical decision) after retiring on his stool at the end of the 11th round. He was also behind on all three cards (by 1, 3 and 5 points).

On 30 January 2007 rumours spread of a Tszyu comeback. However, there was no confirmation. In April 2010, rumors about a possible comeback of Tszyu spread again.[11] He continued to train and stayed in shape since his 2005 loss to Ricky Hatton. On 19 April 2010, Tszyu appeared on Long Lunch Today, an Australian TV program. During the show, he denied his retirement and said he would return if a fight with Shane Mosley, Manny Pacquiao or Floyd Mayweather Jr. could be made.[12]