Professional soccer

Arsenal's Mesut Ozil warms up prior the English Premier League soccer match between Arsenal and Manchester City, at the Emirates Stadium in London, Sunday, Dec. 15, 2019. (AP Photo/Ian Walton)

Arsenal's goalkeeper Bernd Leno, left, fails to save the ball as Manchester City's Raheem Sterling, third right, scores his side's second goal during the English Premier League soccer match between Arsenal and Manchester City, at the Emirates Stadium in London, Sunday, Dec. 15, 2019. (AP Photo/Ian Walton)

Mohamed Salah, tercero a la izquierda, festeja con sus compañeros tras anotar el primer gol en el partido de la Liga Premier en el estadio Anfield, el sábado 14 de diciembre de 2019. (AP Foto/Rui Vieira)

Bournemouth's manager Eddie Howe walks on the field at the end of the English Premier League soccer match between Bournemouth and Liverpool at the Vitality stadium in Bournemouth, England, Saturday, Dec. 7, 2019. (AP Photo/Alastair Grant)

FILE - In this file photo dated Sunday, Feb. 25, 2018, Olympic athletes from Russia celebrate after winning the men's gold medal hockey game against Germany, 4-3, in overtime at the 2018 Winter Olympics, in Gangneung, South Korea. Sanctions handed down by the World Anti-Doping Agency on Monday Dec. 9, 2019, mean there won't be a Russian flag or anthem, but athletes are still aiming for the Tokyo Olympics, and the Russian hockey players belted out the Russian national anthem, even without any music. (AP Photo/Jae C. Hong, FILE)

In this Dec. 5, 2019 photo, a boys pops a wheelie as he rides his bicycle past a mural featuring Lionel Messi in La Bajada, Rosario, Argentina. Soccer wasn't always Messi's favorite activity. When he was a child in the modest neighborhood of La Bajada in his hometown, he spent his time bicycling with friends, building forts out of branches and stones, playing hide and seek — and occasionally stealing lemons from a neighbor to make juice. (AP Photo/Natacha Pisarenko)

FILE - In this Feb. 18, 2014, file photo, a Russian skating fan holds the country's national flag over the Olympic rings before the start of the men's 10,000-meter speedskating race at Adler Arena Skating Center during the 2014 Winter Olympics in Sochi, Russia. The World Anti-Doping Agency banned Russia on Monday Dec. 9, 2019 from the Olympics and other major sporting events for four years, though many athletes will likely be allowed to compete as neutral athletes. (AP Photo/David J. Phillip, File)

FILE - In this May 24, 2016 file photo, employees work in Russia's national drug-testing laboratory in Moscow, Russia. Russia is accused of manipulating an archive of doping data from a laboratory in Moscow, which was meant to be a peace offering to the World Anti-Doping Agency to solve earlier disputes. (AP Photo/Alexander Zemlianichenko, File)

Manchester United's Fred reacts after objects are thrown at him during the English Premier League soccer match at the Etihad Stadium, Manchester, England Saturday Dec. 7, 2019. (Mike Egerton/PA via AP)

Manchester United's manager Ole Gunnar Solskjaer looks on before the English Premier League soccer match between Sheffield United and Manchester United at Bramall Lane Stadium in Sheffield, England, Sunday, Nov. 24, 2019. (AP Photo/Jon Super)