Dallas Seavey leans over for a high-five at the Iditarod Sled Dog Race start area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Wade Marrs, of Willow, waves to fans at the Iditarod Sled Dog Race starting line on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Fans watch musher Jessie Holmes leave the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Christopher Parker, a rookie from Fairbanks, leaves the Iditarod Sled Dog Race starting line on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Aaron Peck, of Grand Prairie, Alberta, waits for the race to begin at the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Michelle Phillips leaves the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Aliy Zirkle, of Two Rivers, greets fans as she passes by the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Dennis Kananowicz, of Tolsona, leaves the Iditarod Sled Dog Race starting chute on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Aaron Burmeister and his team leave the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Four-time Iditarod winner Dallas Seavey suits up for the race at the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Ramey Smyth, of Willow, waves as he begins his run at the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Jeremy Traska, a rookie from Two Rivers, leaves the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Cindy Hite cheers on mushers with a megaphone at the Iditarod Sled Dog Race starting area on a course drastically altered by the coronavirus pandemic at Deshka Landing in Willow, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Ryan Redington leaves the Iditarod Sled Dog Race start area on a course drastically altered by the coronavirus pandemicat Deshka Landing, Alaska, U.S. March 7, 2021. Marc Lester/ADN/Pool via REUTERS

Tennis - ATP 500 - Rotterdam Open - Rotterdam Ahoy, Rotterdam, Netherlands - March 7, 2021 Hungary's Marton Fucsovics before the start of the final REUTERS/Piroschka Van De Wouw

Tennis - ATP 500 - Rotterdam Open - Rotterdam Ahoy, Rotterdam, Netherlands - March 7, 2021 Russia's Andrey Rublev before the start of the final REUTERS/Piroschka Van De Wouw

People celebrate as they wait for the start of a mass led by Pope Francis at the Franso Hariri Stadium in Erbil, Iraq March 7, 2021. REUTERS/Azad Lashkari

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 7, 2021 Russia's Alexander Bolshunov at the start of the men's 50km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 7, 2021 Russia's Alexander Bolshunov at the start of the men's 50km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 7, 2021 Russia's Alexander Bolshunov at the start of the men's 50km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 7, 2021 Russia's Alexander Bolshunov at the start of the men's 50km Classic REUTERS/Kai Pfaffenbach

People are seen as they wait for the start of a mass led by Pope Francis at the Franso Hariri Stadium in Erbil, Iraq March 7, 2021. REUTERS/Azad Lashkari

People celebrate as they wait for the start of a mass led by Pope Francis at the Franso Hariri Stadium in Erbil, Iraq March 7, 2021. REUTERS/Azad Lashkari

A woman reacts as she gets vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar TPX IMAGES OF THE DAY

Jeet Lal Maharjan, 91, reacts as he gets vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

Nani Maya Maharjan, 89, reacts as she gets vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

Nani Maya Maharjan, 89, is assisted after getting vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

Nani Maya Maharjan, 89, returns as her husband Jeet Lal Maharjan, 91, sits on a bench after getting vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

Jeet Lal Maharjan, 91, sits in an ambulance as he returns home along with his wife Nani Maya Maharjan, 89, (not pictured) after getting vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

People wait to register themselves to get vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

A woman reacts as she gets vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

Men sit at a resting area after getting vaccinated against the coronavirus disease (COVID-19) as the government started a campaign to vaccinate elderly people above 65 years old, in Lalitpur, Nepal March 7, 2021. REUTERS/Navesh Chitrakar

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Sweden's Frida Karlsson in action during the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Sweden's Frida Karlsson in action during the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Sweden's Frida Karlsson reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic with second placed Norway's Heidi Weng REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic with second placed Norway's Heidi Weng REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic with second placed Norway's Heidi Weng REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Second placed Norway's Heidi Weng celebrates after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Helene Marie Fossesholm reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Finland's Vilma Nissinen reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Finland's Laura Mononen reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Germany's Laura Gimmler reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Heidi Weng after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Sweden's Frida Karlsson reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Sweden's Frida Karlsson reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Sweden's Frida Karlsson reacts after the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Sweden's Frida Karlsson, Ebba Andersson and Norway's Heidi Weng in action during the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Finland's Krista Parmakoski in action during the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug celebrates winning the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Austria's Teresa Stadlober in action during the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach

Nordic Skiing - FIS Nordic World Ski Championships - Oberstdorf, Germany - March 6, 2021 Norway's Therese Johaug in action during the women's Mass Start 30.0 km Classic REUTERS/Kai Pfaffenbach