Cricket - Second Test - England v New Zealand - Edgbaston Stadium, Birmingham, Britain - June 12, 2021 The umpire gives New Zealand's Neil Wagner hand sanitiser Action Images via Reuters/Peter Cziborra

Cricket - Second Test - England v New Zealand - Edgbaston Stadium, Birmingham, Britain - June 12, 2021 England's James Anderson and Stuart Broad check the ball with the umpire Action Images via Reuters/Peter Cziborra

Cricket - Second Test - England v New Zealand - Edgbaston Stadium, Birmingham, Britain - June 11, 2021 England's Joe Root talks to umpires Michael Gough and Richard Kettleborough as they walk off the field at lunch Action Images via Reuters/Peter Cziborra

Cricket - Second Test - England v New Zealand - Edgbaston Stadium, Birmingham, Britain - June 10, 202 Umpires Michael Gough and Richard Kettleborough walk off the field at stumps Action Images via Reuters/Peter Cziborra

Tennis - French Open - Roland Garros, Paris, France - June 9, 2021 The umpire looks on as Serbia's Novak Djokovic reacts after falling during his quarter final match against Italy's Matteo Berrettini REUTERS/Christian Hartmann

Cricket - First Test - England v New Zealand - Lord's Cricket Ground, London, Britain - June 4, 2021 Ground staff talk to an umpire before play was abandoned due to bad weather Action Images via Reuters/Andrew Couldridge

Cricket - First Test - England v New Zealand - Lord's Cricket Ground, London, Britain - June 4, 2021 General view of the umpires before play was abandoned due to bad weather Action Images via Reuters/Andrew Couldridge

Cricket - First Test - England v New Zealand - Lord's Cricket Ground, London, Britain - June 4, 2021 General view of the umpires before play was abandoned due to bad weather Action Images via Reuters/Andrew Couldridge

Cricket - First Test - England v New Zealand - Lord's Cricket Ground, London, Britain - June 3, 2021 England's Joe Root with umpire Richard Kettleborough Action Images via Reuters/Andrew Couldridge

Tennis - French Open - Roland Garros, Paris, France - June 1, 2021 Spain's Albert Ramos Vinolas speaks to the umpire during his first round match against France's Gael Monfils REUTERS/Benoit Tessier

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - May 13, 2021 Umpire Mohamed Lahyani before the start of Spain's Rafael Nadal's third round match against Canada's Denis Shapovalov REUTERS/Guglielmo Mangiapane

Cricket - Third One Day International - India v England - Maharashtra Cricket Association Stadium, Pune, India - March 28, 2021 England's Jonny Bairstow and Ben Stokes wait for a third umpire decision before Jonny Bairstow loses his wicket REUTERS/Francis Mascarenhas

Cricket - Third One Day International - India v England - Maharashtra Cricket Association Stadium, Pune, India - March 28, 2021 England's Jonny Bairstow and Ben Stokes wait for a third umpire decision before Jonny Bairstow loses his wicket REUTERS/Francis Mascarenhas

Cricket - Third One Day International - India v England - Maharashtra Cricket Association Stadium, Pune, India - March 28, 2021 England's Jonny Bairstow and Ben Stokes wait for a third umpire decision before Jonny Bairstow loses his wicket REUTERS/Francis Mascarenhas

Cricket - Second One Day International - India v England - Maharashtra Cricket Association Stadium, Pune, India - March 26, 2021 India players wait for the umpire's decision REUTERS/Francis Mascarenhas

Cricket - Fourth Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 18, 2021 England's Chris Jordan reacts as he waits for the umpires decision for the wicket of India's Suryakumar Yadav REUTERS/Danish Siddiqui

Cricket - Fourth Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 18, 2021 England's Chris Jordan reacts as he waits for the umpires decision for the wicket of India's Suryakumar Yadav REUTERS/Danish Siddiqui

Cricket - Fourth Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 18, 2021 England players wait for the umpires decision for the wicket of India's Suryakumar Yadav REUTERS/Danish Siddiqui

Tennis - ATP 500 - Mexican Open - The Fairmont Acapulco Princess, Acapulco, Mexico - March 16, 2021 France's Benoit Paire remonstrates with the umpire during his first round match against Greece's Stefanos Tsitsipas REUTERS/Carlos Perez-Gallardo

Tennis - ATP 500 - Mexican Open - The Fairmont Acapulco Princess, Acapulco, Mexico - March 16, 2021 France's Benoit Paire remonstrates with the umpire during his first round match against Greece's Stefanos Tsitsipas REUTERS/Carlos Perez-Gallardo

Cricket - Second Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 14, 2021 England's players wait for an umpires review for the wicket of India's Ishan Kishan REUTERS/Danish Siddiqui

Cricket - Second Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 14, 2021 India's players wait for an umpire's review on the wicket of England's Dawid Malan REUTERS/Danish Siddiqui

Cricket - Second Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 14, 2021 India's Virat Kohli and teammates wait for an umpire's review REUTERS/Danish Siddiqui

Cricket - Second Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 14, 2021 India's Virat Kohli and teammates wait for an umpire's review REUTERS/Danish Siddiqui

Cricket - First Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 12, 2021 The umpire intervenes as England's Jonny Bairstow and India's Washington Sundar argue REUTERS/Danish Siddiqui

Cricket - First Twenty20 International - India v England - Narendra Modi Stadium, Ahmedabad, India - March 12, 2021 The umpire intervenes as England's Jonny Bairstow and India's Washington Sundar argue REUTERS/Danish Siddiqui

Tennis - ATP 500 - Rotterdam Open - Rotterdam Ahoy, Rotterdam, Netherlands - March 7, 2021 General view of the umpire during the final match between Hungary's Marton Fucsovics and Russia's Andrey Rublev REUTERS/Piroschka Van De Wouw

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 19, 2021 Russia's Daniil Medvedev speaks to the umpire during his semi final match against Greece's Stefanos Tsitsipas REUTERS/Jaimi Joy

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 17, 2021 General view as Spain's Rafael Nadal speaks to the umpire during his quarter final match against Greece's Stefanos Tsitsipas REUTERS/Loren Elliott

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 15, 2021 The umpire adjusts the net during the match between Czech Republic's Karolina Muchova and Belgium's Elise Mertens REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 14, 2021 Poland's Iga Swiatek speaks with the umpire during her fourth round match against Romania's Simona Halep REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 14, 2021 Germany's Alexander Zverev speaks with the umpire during his fourth round match against Serbia's Dusan Lajovic REUTERS/Kelly Defina

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 14, 2021 Germany's Alexander Zverev speaks with the umpire during his fourth round match against Serbia's Dusan Lajovic REUTERS/Kelly Defina

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 14, 2021 Germany's Alexander Zverev speaks with the umpire during his fourth round match against Serbia's Dusan Lajovic REUTERS/Kelly Defina

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 13, 2021 Umpire Carlos Ramos REUTERS/Loren Elliott

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 Australia's Nick Kyrgios speaks with umpire Marijana Veljovic regarding the net during his second round match against France's Ugo Humbert REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 Australia's Nick Kyrgios speaks with umpire Marijana Veljovic regarding the net during his second round match against France's Ugo Humbert REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 Australia's Nick Kyrgios speaks with umpire Marijana Veljovic regarding the net during his second round match against France's Ugo Humbert REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 Umpire Marijana Veljovic during the second round match between Australia's Nick Kyrgios and France's Ugo Humbert REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 Australia's Nick Kyrgios speaks with umpire Marijana Veljovic during his second round match against France's Ugo Humbert REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 Umpire Marijana Veljovic during the second round match between Australia's Nick Kyrgios and France's Ugo Humbert REUTERS/Asanka Brendon Ratnayake

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 The umpire Damien Dumusois speaks with Frances Tiafoe of the U.S. during his second round match against Serbia's Novak Djokovic REUTERS/Loren Elliott

Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 8, 2021 Canada's Denis Shapovalov hands a ball to the umpire during his first round match against Italy's Jannik Sinner REUTERS/Asanka Brendon Ratnayake

Tennis - ATP Cup - Melbourne Park, Melbourne, Australia, February 2, 2021 Canada's Denis Shapovalov speaks with the umpire during his group stage match against Serbia's Novak Djokovic REUTERS/Loren Elliott

Cricket - Third Twenty20 International - Australia v India - Sydney Cricket Ground, Sydney, Australia - December 8, 2020 India's Virat Kohli with the umpires REUTERS/Loren Elliott

Cricket - Third Twenty20 International - Australia v India - Sydney Cricket Ground, Sydney, Australia - December 8, 2020 India's Virat Kohli talks with the umpires REUTERS/Loren Elliott

Cricket - Second Twenty20 International - Australia v India - Sydney Cricket Ground, Sydney, Australia - December 6, 2020 India's KL Rahul appeals to the umpire for the wicket of Australia's Moises Henriques REUTERS/Loren Elliott

Tennis - ATP Masters 1000 - Paris Masters - AccorHotels Arena, Paris, France - November 8, 2020 Russia's Daniil Medvedev speaks with an umpire before the final against Germany's Alexander Zverev REUTERS/Gonzalo Fuentes

Tennis - ATP Masters 1000 - Paris Masters - AccorHotels Arena, Paris, France - November 7, 2020 Canada's Milos Raonic remonstrates with the umpire during his semi final match against Russia's Daniil Medvedev REUTERS/Gonzalo Fuentes

Tennis - French Open - Roland Garros, Paris, France - October 11, 2020 Spain’s Rafael Nadal gestures to a mark on the court as the umpire inspects during the final against Serbia’s Novak Djokovic REUTERS/Charles Platiau

Tennis - French Open - Roland Garros, Paris, France - October 11, 2020 Serbia's Novak Djokovic appeals to the umpire during the final against Spain’s Rafael Nadal REUTERS/Christian Hartmann

Tennis - French Open - Roland Garros, Paris, France - September 27, 2020. Britain's Andy Murray speaks to the umpire before his first round match against Switzerland's Stan Wawrinka REUTERS/Charles Platiau

Tennis - French Open - Roland Garros, Paris, France - September 27, 2020 The umpire during the first round match between France's Jeremy Chardy and Austria's Jurij Rodionov REUTERS/Christian Hartmann

Tennis - ATP 500 - Hamburg European Open - Am Rothenbaum, Hamburg, Germany - September 22, 2020 General view of the umpire and spectators in the stands during the first round match between Italy's Fabio Fognini and Germany's Philipp Kohlschreiber REUTERS/Cathrin Mueller

Tennis - ATP 500 - Hamburg European Open - Am Rothenbaum, Hamburg, Germany - September 22, 2020 General view of the umpire and spectators in the stands during the first round match between Italy's Fabio Fognini and Germany's Philipp Kohlschreiber REUTERS/Cathrin Mueller

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 Canada's Denis Shapovalov talks to the chair umpire during his semi final match against Argentina's Diego Schwartzman Pool via REUTERS//Clive Brunskill

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 19, 2020 An umpire is pictured Pool via REUTERS/Riccardo Antimiani

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 15, 2020 Italy's Marco Cecchinato speaks with the umpire during his first round match against Britain's Kyle Edmund Pool via REUTERS/Riccardo Antimiani

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 14, 2020 France's Benoit Paire speaks with the umpire during his match against Italy's Jannik Sinner. Pool via REUTERS/Clive Brunskill

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 14, 2020 France's Benoit Paire speaks with the umpire during his match against Italy's Jannik Sinner. Pool via REUTERS/Clive Brunskill