West Ham United co-chairman David Gold fears more Premier League clubs will be forced into administration.
Gold was speaking in Manchester during a BBC debate on the finances of football clubs.
His comments follow Portsmouth becoming the first Premiership club to go into administration last week.
"The Premier League's a great league, but we're seeing a chink in the armour," said Gold, who with his fellow ex-Birmingham City co-owner David Sullivan bought a 50% stake in West Ham earlier this year, valuing the club at £105m.
"It's possible that more will go. Portsmouth have gone, imagine if next year one or two more go. I'm concerned. I fear for the league if we do not act."