The Ricketts family, who own Major League Baseball team the Chicago Cubs, a consortium featuring Lord Coe and another group led by British property investor Nick Candy have all submitted offers to buy Chelsea.
A deadline for bids had been set for 21:00 GMT on Friday after the Premier League club had been put up for sale by Russian owner Roman Abramovich.
Chelsea fan Candy said he had secured additional investment from South Korea and his bid was for "over £2bn".
Abramovich's attempt to sell the club was halted after he was sanctioned by the UK government and his assets, including Chelsea, were frozen.