Soccer Football - Champions League - Group B - Real Madrid v Borussia Moenchengladbach - Estadio Alfredo Di Stefano, Madrid, Spain - December 9, 2020 Borussia Moenchengladbach players celebrate progressing to the knockout stages after the match REUTERS/Sergio Perez

Soccer Football - Champions League - Group B - Real Madrid v Borussia Moenchengladbach - Estadio Alfredo Di Stefano, Madrid, Spain - December 9, 2020 Borussia Moenchengladbach players celebrate progressing to the knockout stages after the match REUTERS/Sergio Perez

Soccer Football - Champions League - Group B - Real Madrid v Borussia Moenchengladbach - Estadio Alfredo Di Stefano, Madrid, Spain - December 9, 2020 Borussia Moenchengladbach players celebrate progressing to the knockout stages after the match REUTERS/Sergio Perez

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra TPX IMAGES OF THE DAY

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

General view of the action during the Herts Advertiser senior Knockout Cup match between Skew Bridge FC v Brookmans Park in Verulamium Park, St Albans, Britain, March 15, 2020. Action Images via Reuters/Peter Cziborra

Rugby Union - Rugby World Cup - World Rugby and the Japan Rugby 2019 Organising Committee hold news conference ahead of knockout matches - Tokyo, Japan - October 15, 2019. World Rugby Tournament Director Alan Gilpin, World Rugby CEO Brett Gosper, World Rugby Chairman Bill Beaumont, Japan Rugby 2019 organizing committee CEO Akira Shimazu and Japan Rugby 2019 Commercial Director Tomoharu Tsuruda. REUTERS/Matthew Childs

Rugby Union - Rugby World Cup - World Rugby and the Japan Rugby 2019 Organising Committee hold news conference ahead of knockout matches - Tokyo, Japan - October 15, 2019. World Rugby Chairman Bill Beaumont speaks. REUTERS/Matthew Childs

Rugby Union - Rugby World Cup - World Rugby and the Japan Rugby 2019 Organising Committee hold news conference ahead of knockout matches - Tokyo, Japan - October 15, 2019. Japan 2019 Rugby World Cup organizing committee CEO Akira Shimazu. REUTERS/Matthew Childs

Rugby Union - Rugby World Cup - World Rugby and the Japan Rugby 2019 Organising Committee hold news conference ahead of knockout matches - Tokyo, Japan - October 15, 2019. World Rugby CEO Brett Gosper speaks. REUTERS/Matthew Childs

Rugby Union - Rugby World Cup - World Rugby and the Japan Rugby 2019 Organising Committee hold news conference ahead of knockout matches - Tokyo, Japan - October 15, 2019. World Rugby Tournament Director Alan Gilpin speaks. REUTERS/Matthew Childs

Boxing - Dillian Whyte vs Lucas Browne - WBC Silver Heavyweight Title - O2 Arena, London, Britain - March 24, 2018 Dillian Whyte celebrates with his team after winning by knockout in the sixth round against Lucas Browne Action Images via Reuters/Andrew Couldridge

Boxing - Dillian Whyte vs Lucas Browne - WBC Silver Heavyweight Title - O2 Arena, London, Britain - March 24, 2018 Dillian Whyte celebrates with his belt after winning by knockout in the sixth round against Lucas Browne Action Images via Reuters/Andrew Couldridge

Boxing - Dillian Whyte vs Lucas Browne - WBC Silver Heavyweight Title - O2 Arena, London, Britain - March 24, 2018 Dillian Whyte celebrates with his team after winning by knockout in the sixth round against Lucas Browne Action Images via Reuters/Andrew Couldridge

Boxing - Dillian Whyte vs Lucas Browne - WBC Silver Heavyweight Title - O2 Arena, London, Britain - March 24, 2018 Dillian Whyte celebrates with his belt after winning by knockout in the sixth round against Lucas Browne Action Images via Reuters/Andrew Couldridge

An Afghan fighter in knockout in the ring during a mixed martial arts (MMA) match in Kabul, Afghanistan March 30, 2017. REUTERS/Omar Sobhani

Boxing Britain - Anthony Joshua v Eric Molina IBF World Heavyweight Title - Manchester Arena - 10/12/16 Anthony Joshua knocks down Eric Molina Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Anthony Joshua v Eric Molina IBF World Heavyweight Title - Manchester Arena - 10/12/16 The referee stops the fight between Anthony Joshua and Eric Molina Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Anthony Joshua v Eric Molina IBF World Heavyweight Title - Manchester Arena - 10/12/16 Anthony Joshua knocks down Eric Molina Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Anthony Joshua v Eric Molina IBF World Heavyweight Title - Manchester Arena - 10/12/16 Anthony Joshua celebrates after knocking down Eric Molina Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Anthony Joshua v Eric Molina IBF World Heavyweight Title - Manchester Arena - 10/12/16 Eric Molina after being knocked down Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Scott Quigg v Jose Cayetano WBA International Featherweight Title - Manchester Arena - 10/12/16 Scott Quigg celebrates after knocking out Jose Cayetano Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Luis Concepcion v Kal Yafai WBA World Super-Flyweight Title - Manchester Arena - 10/12/16 Kal Yafai knocks down Luis Concepcion Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Callum Smith v Luke Blackledge British Super-Middleweight Title - Manchester Arena - 10/12/16 Luke Blackledge receives medical attention after being knocked out by Callum Smith Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Callum Smith v Luke Blackledge British Super-Middleweight Title - Manchester Arena - 10/12/16 Luke Blackledge receives medical attention after being knocked out by Callum Smith Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Callum Smith v Luke Blackledge British Super-Middleweight Title - Manchester Arena - 10/12/16 Callum Smith walks away after knocking Luke Blackledge out Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Callum Smith v Luke Blackledge British Super-Middleweight Title - Manchester Arena - 10/12/16 The referee tends to Luke Blackledge after being knocked out by Callum Smith Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Callum Smith v Luke Blackledge British Super-Middleweight Title - Manchester Arena - 10/12/16 Callum Smith knocks Luke Blackledge down Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Hosea Burton v Frank Buglioni British Light-Heavyweight Title - Manchester Arena - 10/12/16 Frank Buglioni wins the fight against Hosea Burton as the referee steps in to stop the bout in the 12th round Action Images via Reuters / Andrew Couldridge Livepic EDITORIAL USE ONLY.

Boxing Britain - Kid Galahad v Reynaldo Mora - Lightweight - Motorpoint Arena, Cardiff, Wales - 26/11/16 Kid Galahad knocks down Reynaldo Mora Action Images via Reuters / Andrew Couldridge EDITORIAL USE ONLY.

Boxing Britain - Kid Galahad v Reynaldo Mora - Lightweight - Motorpoint Arena, Cardiff, Wales - 26/11/16 Kid Galahad knocks down Reynaldo Mora Action Images via Reuters / Andrew Couldridge EDITORIAL USE ONLY.

Boxing Britain - Jay Harris v Phil Smith - Super Flyweight - Motorpoint Arena, Cardiff, Wales - 26/11/16 Jay Harris knocks down Phil Smith Action Images via Reuters / Andrew Couldridge EDITORIAL USE ONLY.

Boxing Britain - Jay Harris v Phil Smith - Super Flyweight - Motorpoint Arena, Cardiff, Wales - 26/11/16 Jay Harris knocks down Phil Smith Action Images via Reuters / Andrew Couldridge EDITORIAL USE ONLY.

Boxing Britain - Jay Harris v Phil Smith - Super Flyweight - Motorpoint Arena, Cardiff, Wales - 26/11/16 Jay Harris knocks down Phil Smith Action Images via Reuters / Andrew Couldridge EDITORIAL USE ONLY.

Boxing Britain - Nathan Gorman v Igor Mihaljevic - Heavyweight - Motorpoint Arena, Cardiff, Wales - 26/11/16 Nathan Gorman knocks down Igor Mihaljevi Action Images via Reuters / Andrew Couldridge EDITORIAL USE ONLY.

Boxing Britain - Jason Sillett v Henry Janes - Lightweight - Motorpoint Arena, Cardiff, Wales - 26/11/16 Henry Janes knocks down Jason Sillett Action Images via Reuters / Andrew Couldridge EDITORIAL USE ONLY.

Britain Boxing - Matthew Chanda v Duke Micah - York Hall, Bethnal Green - 12/11/16 Duke Micah after being knocked down Mandatory Credit: Action Images / Paul Childs EDITORIAL USE ONLY.

Britain Boxing - Matthew Chanda v Duke Micah - York Hall, Bethnal Green - 12/11/16 Duke Micah after being knocked down Mandatory Credit: Action Images / Paul Childs EDITORIAL USE ONLY.

Britain Boxing - Matthew Chanda v Duke Micah - York Hall, Bethnal Green - 12/11/16 Matthew Chanda after knocking down Duke Micah Mandatory Credit: Action Images / Paul Childs EDITORIAL USE ONLY.

WBO welterweight champion Jessie Vargas of Las Vegas gets knocked down by Manny Pacquiao of the Philippines during their title fight at the Thomas & Mack Center in Las Vegas, Nevada, U.S., November 5, 2016. REUTERS/Las Vegas Sun/Steve Marcus

WBO welterweight champion Jessie Vargas of Las Vegas gets knocked down by Manny Pacquiao of the Philippines during their title fight at the Thomas & Mack Center in Las Vegas, Nevada, U.S., November 5, 2016. REUTERS/Las Vegas Sun/Steve Marcus

Britain Boxing - Sam Bowen v Reynaldo Mora - Barclaycard Arena, Birmingham - 22/10/16
Reynaldo Mora after being knocked down
Mandatory Credit: Action Images / Andrew Couldridge

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Britain Boxing - Sam Bowen v Reynaldo Mora - Barclaycard Arena, Birmingham - 22/10/16
Sam Bowen in action with Reynaldo Mora
Mandatory Credit: Action Images / Andrew Couldridge

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Britain Boxing - Khalid Yafai v Johnson Tellez - Barclaycard Arena, Birmingham - 22/10/16
Johnson Tellez after being knocked down
Mandatory Credit: Action Images / Andrew Couldridge

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Britain Boxing - Tony Bellew v BJ Flores WBC World Cruiserweight Title - Liverpool Echo Arena - 15/10/16
BJ Flores after being knocked down by Tony Bellew
Action Images via Reuters / Lee Smith
Livepic
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Britain Boxing - Tony Bellew v BJ Flores WBC World Cruiserweight Title - Liverpool Echo Arena - 15/10/16
BJ Flores after being knocked down by Tony Bellew
Action Images via Reuters / Lee Smith
Livepic
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Britain Boxing - Tony Bellew v BJ Flores WBC World Cruiserweight Title - Liverpool Echo Arena - 15/10/16
Tony Bellew knocks out BJ Flores to win the fight
Action Images via Reuters / Lee Smith
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Britain Boxing - Tony Bellew v BJ Flores WBC World Cruiserweight Title - Liverpool Echo Arena - 15/10/16
Tony Bellew after knocking down BJ FLores
Action Images via Reuters / Lee Smith
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Britain Boxing - Luke Campbell v Derry Mathews WBC Silver Lightweight Title - Liverpool Echo Arena - 15/10/16
Derry Mathews after he was knocked out by Luke Campbell
Action Images via Reuters / Lee Smith
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