Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view outside the arena after the semi final match between Serbia's Novak Djokovic and Norway's Casper Ruud Pool via REUTERS/Riccardo Antimiani

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of a spectators leaving the arena after the semi final match between Serbia's Novak Djokovic and Norway's Casper Ruud Pool via REUTERS/Riccardo Antimiani

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of a spectator inside the arena during the semi final match between Serbia's Novak Djokovic and Norway's Casper Ruud Pool via REUTERS/Riccardo Antimiani

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of a spectator inside the arena during the semi final match between Serbia's Novak Djokovic and Norway's Casper Ruud Pool via REUTERS/Riccardo Antimiani

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view inside the arena during the semi final match between Serbia's Novak Djokovic and Norway's Casper Ruud Pool via REUTERS/Riccardo Antimiani

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view inside the arena during the semi final match between Serbia's Novak Djokovic and Norway's Casper Ruud Pool via REUTERS/Clive Brunskill

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of the shadow of Serbia's Novak Djokovic during his semi final match against Norway's Casper Ruud Pool via REUTERS/Clive Brunskill

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view inside the stadium during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of fans inside the stadium during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Riccardo Antimiani

MotoGP - Emilia Romagna Grand Prix - Misano World Circuit Marco Simoncelli, Misano, Italy - September 20, 2020 General view of fans in the stand during the race REUTERS/Jennifer Lorenzini

MotoGP - Emilia Romagna Grand Prix - Misano World Circuit Marco Simoncelli, Misano, Italy - September 20, 2020 General view as fans in the stands wave flags in support of Monster Energy Yamaha MotoGP's Valentino Rossi REUTERS/Jennifer Lorenzini

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of fans inside the stadium during the match REUTERS/Alessandro Garofalo

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of security check area outside the stadium Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of fans outside the stadium Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view as fans sanitise their hands outside the stadium Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view as fans have bags checked by security outside the stadium Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view as fans have bags checked by security outside the stadium Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of fans inside the stadium during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of fans inside the stadium during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of fans inside the stadium during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Riccardo Antimiani

General view of a service to mark the 80th anniversary of the Battle of Britain at Westminster Abbey in London, Britain September 20, 2020. Aaron Chown/PA Wire/Pool via REUTERS

General view of a service to mark the 80th anniversary of the Battle of Britain at Westminster Abbey in London, Britain September 20, 2020. Aaron Chown/PA Wire/Pool via REUTERS

General view of a service to mark the 80th anniversary of the Battle of Britain at Westminster Abbey in London, Britain September 20, 2020. Aaron Chown/PA Wire/Pool via REUTERS

General view of a service to mark the 80th anniversary of the Battle of Britain at Westminster Abbey in London, Britain September 20, 2020. Aaron Chown/PA Wire/Pool via REUTERS

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of fans inside the stadium during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Clive Brunskill

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of a fan wearing a protective face mask outside the stadium Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view of fans outside the stadium Pool via REUTERS//Riccardo Antimiani

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Clive Brunskill

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 20, 2020 General view during the semi final match between Romania's Simona Halep and Spain's Garbine Muguruza Pool via REUTERS//Clive Brunskill

General view of a service to mark the 80th anniversary of the Battle of Britain at Westminster Abbey in London, Britain September 20, 2020. Aaron Chown/PA Wire/Pool via REUTERS

MotoGP - Emilia Romagna Grand Prix - Misano World Circuit Marco Simoncelli, Misano, Italy - September 20, 2020 General view of fans in the stands REUTERS/Jennifer Lorenzini

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of fans inside the stadium REUTERS/Alessandro Garofalo

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of fans inside the stadium before the match REUTERS/Alessandro Garofalo

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view as fans pose inside the stadium before the match REUTERS/Alessandro Garofalo

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of fans inside the stadium before the match REUTERS/Alessandro Garofalo

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of fans inside the stadium before the match REUTERS/Alessandro Garofalo

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of fans inside the stadium before the match REUTERS/Alessandro Garofalo

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of fans inside the stadium before the match REUTERS/Alessandro Garofalo

Soccer Football - Ligue 1 - OGC Nice v Paris St Germain - Allianz Riviera, Nice, France - September 20, 2020 General view inside the stadium before the match REUTERS/Eric Gaillard

General view outside Westminster Abbey ahead of the "Service of Thanksgiving and Rededication to mark the 80th anniversary of the Battle of Britain", in London, Britain, September 20, 2020. REUTERS/Henry Nicholls

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view as a fan goes through the turnstiles outside the stadium before the match REUTERS/Alessandro Garofalo TPX IMAGES OF THE DAY

Soccer Football - Premier League - Southampton v Tottenham Hotspur - St Mary's Stadium, Southampton, Britain - September 20, 2020 General view outside the stadium before the match REUTERS/Andrew Boyers EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. Please contact your account representative for further details.

Soccer Football - Premier League - Southampton v Tottenham Hotspur - St Mary's Stadium, Southampton, Britain - September 20, 2020 General view outside the stadium before the match REUTERS/Andrew Boyers EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. Please contact your account representative for further details.

Soccer Football - Premier League - Southampton v Tottenham Hotspur - St Mary's Stadium, Southampton, Britain - September 20, 2020 General view outside the stadium before the match REUTERS/Andrew Boyers EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. Please contact your account representative for further details.

Soccer Football - Serie A - Parma v Napoli - Stadio Ennio Tardini, Parma, Italy - September 20, 2020 General view of a health sign at a turnstile before the match REUTERS/Alessandro Garofalo

MotoGP - Emilia Romagna Grand Prix - Misano World Circuit Marco Simoncelli, Misano, Italy - September 20, 2020 General view during the Moto3 race as fans watch REUTERS/Jennifer Lorenzini

MotoGP - Emilia Romagna Grand Prix - Misano World Circuit Marco Simoncelli, Misano, Italy - September 20, 2020 General view during the Moto3 race REUTERS/Jennifer Lorenzini

A general view of the U.S. Supreme Court during a vigil following the death of U.S. Supreme Court Justice Ruth Bader Ginsburg in Washington, U.S., September 19, 2020. REUTERS/Yuri Gripas

A general view of the U.S. Supreme Court during a vigil following the death of U.S. Supreme Court Justice Ruth Bader Ginsburg in Washington, U.S., September 19, 2020. REUTERS/Yuri Gripas

A general view of the U.S. Supreme Court during a vigil following the death of U.S. Supreme Court Justice Ruth Bader Ginsburg in Washington, U.S., September 19, 2020. REUTERS/Yuri Gripas

Tennis - ATP Masters 1000 - Italian Open - Foro Italico, Rome, Italy - September 19, 2020 General view of empty seats Pool via REUTERS/Riccardo Antimiani

A man checks a mobile phone as he sits at the Kalemegdan fortress, as the spread of the coronavirus disease (COVID-19) continues, in Belgrade, Serbia, September 19, 2020. REUTERS/Marko Djurica

People sit at the Kalemegdan fortress, as the spread of the coronavirus disease (COVID-19) continues, in Belgrade, Serbia, September 19, 2020. REUTERS/Marko Djurica

A man proposes to his girlfriend at the Kalemegdan fortress, as the spread of the coronavirus disease (COVID-19) continues, in Belgrade, Serbia, September 19, 2020. REUTERS/Marko Djurica TPX IMAGES OF THE DAY

Soccer Football - Serie A - Hellas Verona v AS Roma - Stadio Marc'Antonio Bentegodi, Verona, Italy - September 19, 2020 General view during the match REUTERS/Daniele Mascolo

Soccer Football - Bundesliga - Borussia Dortmund v Borussia Moenchengladbach - Signal Iduna Park, Dortmund, Germany - September 19, 2020 General view of Borussia Dortmund players applauding fans after the match REUTERS / Leon Kuegeler

 DFL regulations prohibit any use of photographs as image sequences and/or quasi-video

Soccer Football - Bundesliga - Borussia Dortmund v Borussia Moenchengladbach - Signal Iduna Park, Dortmund, Germany - September 19, 2020 General view of match action REUTERS / Leon Kuegeler

 DFL regulations prohibit any use of photographs as image sequences and/or quasi-video

Soccer Football - Bundesliga - Borussia Dortmund v Borussia Moenchengladbach - Signal Iduna Park, Dortmund, Germany - September 19, 2020 General view of the big screen displaying the matchday attendance REUTERS / Leon Kuegeler

 DFL regulations prohibit any use of photographs as image sequences and/or quasi-video

Tennis - WTA Premier 5 - Italian Open - Foro Italico, Rome, Italy - September 19, 2020 General view during the quarter final match between Czech Republic's Marketa Vondrousova and Ukraine's Elina Svitolina Pool via REUTERS/Clive Brunskill