FILE - In this Sunday, March 8, 2020 file photo, a view of the empty San Siro stadium during the Serie A soccer match between AC Milan and Genoa, in Milan, Italy. The Italian soccer players' association rejected a proposal from Serie A clubs Monday to reduce salaries by a third if the season does not resume as "unmanageable." The guideline austerity measure was agreed on by 19 of the 20 clubs, the Italian league announced, with Juventus not included because it already finalized a deal with its players to relieve financial pressure on the eight-time defending champion amid the coronavirus pandemic. (AP Photo/Antonio Calanni, File)

FILE - In this Sunday, March 8, 2020 filer, a view of the empty stadium during the Serie A soccer match between AC Milan and Genoa at the San Siro stadium, in Milan, Italy. While soccer leagues around Europe are still debating whether and when to resume playing, the leader of the continent’s Federation of Sports Medicine Associations is calling for a detailed series of tests to clear athletes for a return to training. Maurizio Casasco, who is also president of the Italian Federation of Sports Medicine, said that guidelines recently published by his domestic federation should be extended for all of Europe -- especially if UEFA intends to resume the Champions League and Europa League anytime soon. (AP Photo/Antonio Calanni, File)