Doping

In this photo provided by FC Barcelona, Barcelona's coach Quique Setien watches his players doing a training session in Barcelona, Spain on Friday May 8, 2020. Soccer players in Spanish player returned to train for the first time since the country entered a lockdown nearly two months ago because of the coronavirus pandemic. (Miguel Ruiz/FC Barcelona via AP)

FILE - In this file photo dated Friday, Jan. 24, 2020, action during the Cologne against Dortmund German Bundesliga soccer match between in Dortmund, Germany. Cologne soccer club said Friday May 2, 2020, that three people at the club had tested positive for the coronavirus, but didn't name them or say whether they were players. (AP Photo/Martin Meissner, FILE)

In a photo provided by The Call to Unite, Oprah Winfrey speaks during the 24-hour live event, which was transmitted Friday, May 1, 2020. (The Call to Unite via AP)

FILE - In this Oct. 30, 1974, file photo, challenger Muhammad Ali, top, watches as defending world champion George Foreman goes down to the canvas in the eighth round of their WBA/WBC championship match in Kinshasa, Zaire. The 1996 film "When We Were Kings" is a documentary of the bout known as the "Rumble In The Jungle" between Ali and Foreman. The fight was a cultural milestone that ran far deeper than boxing. (AP Photo/File)

FILE - In this May 5, 2018, file photo, Mike Smith rides Justify to victory during the 144th running of the Kentucky Derby horse race at Churchill Downs in Louisville, Ky. The move of the Triple Crown’s first leg to Labor Day weekend due to the coronavirus pandemic will mark the first time the Derby won’t run on the first Saturday in May since 1945. (AP Photo/Morry Gash, File)

In this Sept. 22, 2019, photo, Los Angeles Rams center Brian Allen blocks during the second half of an NFL football game against the Cleveland Browns in Cleveland. Allen said Wednesday, April 15, 2020, that he tested positive for COVID-19 three weeks ago. Allen is the first active NFL player to acknowledge testing positive during the coronavirus pandemic. (AP Photo/David Dermer)

FILE - In this May 29, 2010, file photo, Philadelphia Phillies starting pitcher Roy Halladay throws a pitch in the ninth inning of a baseball game against the Florida Marlins in Miami. The Phillies will retire the late Hall of Fame pitcher's No. 34 this season. The Phillies will pay tribute to Halladay on May 29, 2020, the 10th anniversary of his perfect game against the Marlins. Halladay was 40 when he was killed in a plane crash in November 2017. (AP Photo/Wilfredo Lee, File)

FILE - In this Saturday, Oct. 5, 2019 file photo, Noah Lyles of the United States reacts after winning the men's 4x100 meter relay final during the World Athletics Championships in Doha, Qatar. The world-champion sprinter is one of 15 American athletes who have volunteered for in-home drug testing as part of a pilot program being run by the U.S. Anti-Doping Agency. (AP Photo/Martin Meissner, File)

FILE - In this May 4, 2019, file photo, International Olympic Committee President Thomas Bach speaks at the Australian Olympic Committee annual general meeting in Sydney, Australia. During an interview with a German newspaper Sunday, April 12, 2020, Bach says the International Olympic Committee will face “several hundred million dollars”of added costs because of the postponement of the Tokyo Olympics until next year. (AP Photo/Rick Rycroft, File)

Indiana Pacers guard Victor Oladipo, left, drives to the basket as Chicago Bulls guard Denzel Valentine defends during the first half of an NBA basketball game in Chicago, Friday, March 6, 2020. (AP Photo/Nam Y. Huh)