Reaching the final of the revamped competition in the US this summer left Chelsea with just 13 days of pre-season preparations before beginning the current campaign.
Paris Saint Germain had just 7 days.
Fifpro says the report compiled with consultancy Football Benchmark, underlined its case for the game to adopt minimum 28-day periods of rest and pre-season training.
Chelsea have seen several first team players suffer muscle injuries in the first few weeks of the season, including Cole Palmer and Levi Colwill.



