The Ricketts family have joined Sir Martin Broughton and Todd Boehly on the shortlist to buy Chelsea.
Chicago Cubs owners the Ricketts family were understood to have been informed by merchant bank the Raine Group early on Friday afternoon in New York time.
LA Dodgers part-owner Boehly, former Liverpool chairman Broughton and the Cubs-owning Ricketts now lead the race to take charge at Stamford Bridge.
There is also a fourth shortlisted bid from Stephen Pagliuca, co-owner of NBA team the Boston Celtics and Serie A side Atalanta.
Raine spent Thursday informing a host of unsuccessful bidders they were out of the auction before starting the process of confirming the shortlist in the race to buy the Blues.
The New York bank will dig into further details of remaining submissions once the shortlist is rubber-stamped.
US magnate Boehly and his Eldridge Industries firm has backing from Swiss billionaire Hansjorg Wyss and respected British business leader Jonathan Goldstein.
Former British Airways chairman Broughton has drafted in sports business and politics heavyweight Lord Sebastian Coe, adding genuine clout to his consortium.
Wall Street investment banker Michael Klein has added a major financial edge, with a number of other backers also involved.
The Cubs-owning Ricketts family boast the financial muscle of US hedge fund supremo Ken Griffin, believing their experience of renovating storied stadium Wrigley Field offers an edge in their candidacy given Stamford Bridge’s required rebuild.
However, the Chelsea Supporters’ Trust says it still has concerns about the ability of the family to run “an inclusive, successful club”.
The CST’s apprehension stems from family patriarch Joe Ricketts, who is not involved in the bid to buy the Blues, being accused of Islamophobia in 2019, after a string of emails were leaked.
The family, who have insisted they do not accept any kind of racism or hatred, met with the CST this week in a bid to allay fans’ concerns.
But a CST statement read: “It is essential that the new owners of the club has the confidence of the supporter base and demonstrate an understanding of the values that we stand for.
“That is why the strength of feeling towards the Ricketts family bid from Chelsea supporters cannot and must not be ignored.
“The CST are grateful for the Ricketts family for meeting with us this week. We challenged them on all the points supporters have raised concerns about.
“However, our concerns about their ability to run an inclusive, successful club on behalf of our diverse supporter base around the world have not yet been allayed.”
Joe Ricketts’ son Tom Ricketts has again vowed to prove the family will meet the criteria of the supporters.
He said: “My family and I are very grateful to all the fans and supporters’ groups who took time to meet with us this week and share their passion and concerns for Chelsea Football Club. It’s clear you have nothing but the best interests of the club at heart.
“We have listened to all of your feedback – including from the Chelsea Supporters’ Trust – and are grateful that the door is still open for us to demonstrate our commitment to working with fans to protect the club’s heritage.
“It is now up to us to redouble our efforts and clearly lay out a vision for our stewardship of the club with diversity and inclusion at its heart.”
Roman Abramovich put Chelsea up for sale on March 2, amid Russia’s continued invasion of Ukraine.
The Russian-Israeli billionaire was then sanctioned by the Government on March 10, with Downing Street claiming to have proven his links to Vladimir Putin.
The Blues must operate under strict Government licence, with Abramovich unable to profit from Chelsea’s sale.
Downing Street must approve another new licence to authorise Chelsea’s eventual sale, with the money either frozen or distributed to charitable funds to aid victims of the war in Ukraine.
Abramovich has pledged to write off Chelsea’s £1.5billion debt and the bidding frenzy for the club could see the eventual deal hit £3billion.
