Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - February 28, 2021 General view of the track preparation team before the men's team nordic combined gundersen 4 x 5km REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - February 23, 2021 An athlete practices at the cross country track for the upcoming FIS Nordic World Ski Championships REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - February 23, 2021 Athletes practice at the cross country track for the upcoming FIS Nordic World Ski Championships REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - February 23, 2021 Athletes practice at the cross country track for the upcoming FIS Nordic World Ski Championships REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - February 23, 2021 Cardboard spectators are seen along the cross country track for the upcoming FIS Nordic World Ski Championships, amid restrictions due to the coronavirus disease (COVID-19) pandemic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - February 23, 2021 Athletes practice at the cross country track for the upcoming FIS Nordic World Ski Championships REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - February 23, 2021 Cardboard spectators are seen along the cross country track for the upcoming FIS Nordic World Ski Championships, amid restrictions due to the coronavirus disease (COVID-19) pandemic REUTERS/Kai Pfaffenbach

Athletes practice at the cross country track for the upcoming FIS Nordic World Ski Championships in Oberstdorf, Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Athletes practice at the cross country track for the upcoming FIS Nordic World Ski Championships in Oberstdorf, Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Athletes practice at the cross country track for the upcoming FIS Nordic World Ski Championships in Oberstdorf, Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Cardboard spectators are seen along the cross country track for the upcoming FIS Nordic World Ski Championships, amid restrictions due to the coronavirus disease (COVID-19) pandemic, in Oberstdorf, Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Cardboard spectators are seen along the cross country track for the upcoming FIS Nordic World Ski Championships, amid restrictions due to the coronavirus disease (COVID-19) pandemic, in Oberstdorf, Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Norwegian coaches wear mandatory protective masks at the cross country track for the upcoming FIS Nordic World Ski Championships, as the spread of the coronavirus disease (COVID-19) continues, in Oberstdorf , Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Athletes practice at the cross country track for the upcoming FIS Nordic World Ski Championships in Oberstdorf, Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Norwegian coaches wear mandatory protective masks at the cross country track for the upcoming FIS Nordic World Ski Championships as the spread of the coronavirus disease (COVID-19) continues in Oberstdorf , Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

Cardboard spectators are seen along the cross country track for the upcoming FIS Nordic World Ski Championships, amid restrictions due to the coronavirus disease (COVID-19) pandemic, in Oberstdorf, Germany, February 22, 2021. REUTERS/Kai Pfaffenbach

People walk and shop as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), inside the mall in Jerusalem February 21, 2021. REUTERS/Ammar Awad

A man exercises at a gym where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), in Jerusalem February 21, 2021. REUTERS/Ammar Awad

People walk and shop as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), inside the mall in Jerusalem February 21, 2021. REUTERS/Ammar Awad

A man exercises at a gym where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), in Jerusalem February 21, 2021. REUTERS/Ammar Awad

A woman exercises at a gym where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), in Jerusalem February 21, 2021. REUTERS/Ammar Awad

A man exercises at a gym where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), in Jerusalem February 21, 2021. REUTERS/Ammar Awad

A man wearing a mask walks inside a gym where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

A woman looks at her reflection in a mirror as she exercises at a gym where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

People exercise at a gym where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

A man wearing a mask is reflected in glass as he enters a pool where a "Green Badge" is required upon entry, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

A man adjusts his snorkel at a pool where a "Green Badge" is required to enter, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

People swim at a pool where a "Green Badge" is required to enter, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

A woman shows her COVID vaccination status on her mobile phone at a gym where a "Green Badge" is required to enter, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

A man adjusts his wetsuit at a pool where a "Green Badge" is required to enter, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

Men prepare to enter a pool where a "Green Badge" is required to enter, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

Men relax at a pool where a "Green Badge" is required to enter, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

A man stands underneath signs directing people with a "Green Pass" at Habima National Theatre, as part of its preparations for reopening, while Israel continues to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun

Farmers offer the police officers and administration officials (not pictured) sweets while blocking a railway track to stop train services at Modi Nagar railway station as part of protests against farm laws, in Modinagar, Uttar Pradesh, India, February 18, 2021. REUTERS/Anushree Fadnavis

Farmers throw flower petals while blocking a railway track to stop train services at Modi Nagar railway station as part of protests against farm laws, in Modinagar, Uttar Pradesh, India, February 18, 2021. REUTERS/Anushree Fadnavis

Farmers arrive in a tractor trolley to block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Security personnel stand guard as farmers block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers arrive to block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers shout slogans while blocking a railway track to stop train services at Modi Nagar railway station as part of protests against farm laws, in Modinagar, Uttar Pradesh, India, February 18, 2021. REUTERS/Anushree Fadnavis

Farmers block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers arrive in a tractor trolley to block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers block railway tracks as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers block a railway track to stop train services at Modi Nagar railway station as part of protests against farm laws, in Modinagar, Uttar Pradesh, India, February 18, 2021. REUTERS/Anushree Fadnavis

Farmers block a railway track to stop train services at Modi Nagar railway station as part of protests against farm laws, in Modinagar, Uttar Pradesh, India, February 18, 2021. REUTERS/Anushree Fadnavis

Farmers shout slogans as they sit on railway tracks to stop trains during protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Farmers block a railway track to stop train services at Modi Nagar railway station as part of protests against farm laws, in Modinagar, Uttar Pradesh, India, February 18, 2021. REUTERS/Anushree Fadnavis

Farmers sit on railway track to stop trains as part of protests against farm laws, in Sonipat, northern state of Haryana, India, February 18, 2021. REUTERS/Danish Siddiqui

Athletics - Copernicus Cup - Torun, Poland - February 17, 2021 Ethiopia's Genzebe Dibaba is helped off the track by medical staff after sustaining an injury during the Women's 3000 Meters REUTERS/Aleksandra Szmigiel

Tire tracks and footsteps are seen in the snow as the state of Texas experiences widespread power outages and record-breaking temperatures in Houston, U.S., February 16, 2021. REUTERS/Callaghan O'Hare

Michael van der Veen, lawyer for former U.S. President Donald Trump, cross the track of the U.S. Capitol subway system after the Senate voted to acquit former President Trump during his impeachment trial in Washington, U.S. February 13, 2021. REUTERS/Erin Scott

A maintenance tram removes snow from a track during heavy snowfall in Moscow, Russia February 13, 2021. REUTERS/Evgenia Novozhenina

Ski tracks are pictured on a hill in Braemar, Scotland, Britain, February 11, 2021. REUTERS/Russell Cheyne

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 Members of staff performs maintenance on the track as fog delays the start REUTERS/Leonhard Foeger

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 General view of staff on the track as fog delays the start REUTERS/Leonhard Foeger

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 A member of staff performs maintenance on the track as fog delays the start REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 8, 2021 Staff perform maintenance on the track after the schedule for today is cancelled due to weather conditions REUTERS/Leonhard Foeger

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 8, 2021 Staff perform maintenance on the track after the schedule for today is cancelled due to weather conditions REUTERS/Leonhard Foeger