Premier League clubs have been warned they must seek a balance with fans over the price of football as teams strive to get richer but still comply with financial fair play rules.
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European governing body Uefa introduced FFP to help prevent clubs overspending and risking their long-term future.
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But Uefa general secretary Gianni Infantino believes clubs must not increase revenue at fans' expense.
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"It's important to keep the fans on board," he told BBC Radio 5 live.
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Speaking on the station's "Premier League: State of Play" programme, he added: "Fans are the only ones who remain loyal throughout their life to the club. Financial Fair Play at a glance.
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Clubs hoping to take part in the Champions or Europa Leagues must balance their football-related expenditure over a three-year period.
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This coming season is the second season that counts towards the 2013-14 assessment but clubs will be allowed to make a loss of 45m euros (£37.5m) over the three years, falling to 30m euros from 2015-16. It is not until 2018 that clubs have to bring their annual losses below £8.8m.
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The ultimate sanction for any club that fails to comply with FFP criteria is a ban from European competition.
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"Everybody else sooner or later changes - players, managers, even owners - so a dialogue with fans to find the right balance is a good thing."
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This summer's transfer window closes on 2 September, but Premier League clubs have already spent more than £350m.
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The dramatic increase in television money - a rise of 70% on the previous deal, which saw revenues of £3bn generated - has given clubs added spending power but the desire to compete for the game's top players and not fall foul of Uefa's new financial rules has put increased emphasis on other revenue streams, such as ticketing.
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Some supporters groups have complained about the high cost of watching teams play.
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Last January, Manchester City fans returned 900 tickets for their Premier League game at the Emirates stadium in protest over a £62 price tag, while the Football Supporters' Federation has called for away tickets to be capped at £20.
English Premier League has done so well when it comes to managing their football clubs playing in the league. They've done well!