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According to Daily Mail, Chelsea are worried Real Madrid will be unable to pay the transfer fee owed the club following the transfer of Eden Hazard to the Spanish club last summer because of the collapse of TV deals on the continent.
Hazard joined Real Madrid last summer for £90 million with the transfer fee to be paid in instalments.
Daily Mail claim broadcasters in France, Spain and Italy have all failed to make payments to their respective leagues over the last month, leading to fears that clubs in those countries may be unable to pay fees due in June.
The report claims Premier League clubs sold players for a combined £851m to counterparts in France, Spain and Italy over the last four years, although a significant proportion of those fees have yet to be paid and could now be in jeopardy.