Raine Group has reportedly granted the four final bidders in the race to buy Chelsea a two-week period to revise their proposals.
Earlier this week, the US merchant bank put together a shortlist to streamline the process of finding a replacement for outgoing owner Roman Abramovich.
LA Dodgers part-owner Todd Boehly, the Ricketts Family of the Chicago Cubs, a consortium led by former Liverpool chairman Martin Broughton and Boston Celtics co-owner Stephen Pagliuca are all said to be in the running.
However, according to The Sun, Chelsea supporters should not expect a quick resolution with revised bids from each of the parties not expected until April 11.
The upcoming period is to allow each candidate an opportunity to hold discussions with key Chelsea figures, assess financial data and consider whether to bring fresh faces into their respective proposals.
A further report has claimed that the successful bidder will have to commit to investing £1bn into Chelsea's infrastructure, which includes the stadium and playing squad.