Spencer Oliver is described as being in a critical condition after his European super-bantamweight title bout with Ukrainian Sergei Devakov at the Royal Albert Hall.

He is the latest a long line of boxers to be badly injured or even killed in the sport:

1998

Zambian boxer Felix Bwalya died nine days after being knocked down three times in the final rounds of a Commonwealth title clash with Britain's Paul Burke.

1997

Chris Henry collapsed during a fight against Dominic Negus for the Southern Area Cruiserweight title. He is recovering after surgery.

Carl Wright underwent surgery after losing the fight for the British light-welterweight title against Mark Winters. He is still recovering.

1995

American Gerald McClellan fell into a coma after being knocked down by Nigel Benn in a WBC super-middleweight title fight in London. He was hospitalised for two months and has now lost his sight.

Colombian Jimmy Garcia died of a blood clot on the brain, 13 days after his challenge for the WBC super-featherweight title held by Gabriel Ruelas in Las Vegas.

James Murray died after the British bantamweight title fight against Drew Docherty in Glasgow. Fight fans brawled as medics tried to treat Murray.

1994

Londoner Bradley Stone died after an unsuccessful British super-bantamweight title fight with Richie Wenton.

American Michael Bentt collapsed after losing the WBO heavyweight title to Herbie Hide and was found to be suffering a brain injury. He has recovered.

Former Olympic welterweight gold medallist Wangila Napunyi of Kenya died after being stopped by American David Gonzalez.

1992

American Ramon Gomez, 19, died of a blood clot 18 hours after his first amateur fight was stopped by a referee.

1991

Middleweight Michael Watson needed brain surgery after being halted by fellow Briton Chris Eubank. Watson, who is confined to a wheelchair, is suing the British Boxing Board of Control for negligence.

1989

David Thio died in Lyon 10 days after being knocked out by American Terrence Alli.

Rod Douglas needed brain surgery to remove a blood clot after being stopped by Herol Graham in a British middleweight title fight. He has fully recovered.

1988

South African featherweight Daniel Thetele died on leaving the ring after losing to Aaron Williams in Johannesburg.

Brian Baronet died after being knocked out by American welterweight Kenny Vice in Durban.

1987

French bantamweight Jean-Claude Vinci died after being outpointed by Lionel Jean in Evreux.

1986

Scotland's Steve Watt died after a match against Rocky Kelly in London.

1985

American Shawn Thomas died of head injuries suffered in a junior lightweight bout in Indiana against compatriot Chris Calvin.

Gerardo Derbes died of head injuries after a Mexican welterweight title bout against Jorge Vaca.

South African Jacob Morake died after a junior lightweight bout against South African Champion Brian Mitchell in Sun City.

1983

Mexican Kiko Bejines died after being knocked out during a challenge to Albert Davila for the world bantamweight title in Los Angeles.

Isidro "Gino" Perez, 24, of New York, died six days after being knocked out by Juan Ramon Cruz in a lightweight bout in New York.

1982

Barry McGuigan, a future world champion, knocked out Young Ali in the sixth round of his 12th fight in London and the Nigerian later died.

Flyweight Andy Balaba, 28, of the Philippines, died of injuries suffered in a fight against Shin Hee Sup.

Duk Koo Kim, 23, a lightweight from South Korea, died after being knocked out by Ray "Boom Boom" Mancini in Las Vegas.

1980

Welshman Johnny Owen died after being knocked out in a challenge to Lupe Pintor for the world bantamweight title in Los Angeles

American Charles W Newell, 26, died after being knocked out in the seventh round of a welterweight contest in Hartford, Connecticut.

Cleveland Denny died in Montreal 16 days after being knocked out by Canadian lightweight champion Gaetan Hart.

1969

J Ulrich Regis died after a points defeat in Shoreditch, London.

1979

Italian middleweight Angelo Jacopucci died after being knocked out by Britain's Alan Minter. The ringside doctor was later found guilty of manslaughter.

Puerto Rican middleweight Willie Claasen died after he lost to American Wilfred Scypion in New York.

1963

Davey Moore died after being knocked out by Sugar Ray Ramos for the featherweight title at Madison Square Garden.

1962

World welterweight champion Benny Paret, of Cuba, died after a 12th round stoppage against Emile Griffith in New York.

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