The Premier League has an unprecedented six teams in the last 16 of this season's Champions League
Uefa has serious concerns about the impact of the Premier League's new financial rules on the rest of Europe.
England's top-flight clubs have voted to move to a system called squad cost ratio (SCR) next season.
This allows teams to spend 85% of their income on player costs, although a complicated set of factors means clubs could go as high as 115%.
Uefa's SCR spending limit is 70%, which all clubs in the Champions League, Europa League and Conference League must adhere to.
