Stars' careers are being put at risk by the imminent resumption of competition, according to a union representing nearly 100,000 athletes.
German football has been cleared to resume next week, and other leading competitions — including the Premier League, which hopes to return on June 12 — are watching closely.
Yet the World Players' Association, the umbrella organisation for more than 100 unions including the footballers' global body FIFPro, fears decisions to restart are being taken without ample scientific evidence.
The World Players' Association believes rushing football back is putting players at risk
Leagues are desperate to restart and avoid huge financial trouble for themselves and clubs
Chief executive Brendan Schwab said: 'Extensive measures are being developed aimed at preventing COVID-19 from entering or spreading throughout the sports environment.