The Rugby Football League has confirmed it has received four unconditional bids for administration-hit Super League side Bradford Bulls.
A deadline of 21 August has now been set for the bidders to present a concrete business plan for the club.
In a statement the RFL revealed the offer from Super League (Europe) Ltd is one of the four under consideration but the other three could not be named.
RFL chief operating officer Ralph Rimmer said: "We had constructive meetings with all the consortia that have submitted proposals to the administrator on Wednesday and we're optimistic about the future of Bradford Bulls.
"There are now four confirmed bids for the Bulls and each consortium has been asked to submit business plans to us by Tuesday, 21 August. Due to the sensitive nature of the current discussions we are unable to confirm who the bids are from at present.
"However, it does appear that this renewed interest has come as a direct consequence of the offer from Super League Europe Ltd, which remains on the table.
"We understand the frustration regarding the on-going process but it is vital that due diligence is carried out on all the bids and that ultimately the right owners are found for the good of the club and the sport as a whole."
Administrator Brendan Guilfoyle, who said the club faced "extinction" upon entering administration at the end of June, has said he is happy with how the situation is now progressing.
"We are pleased to be working collaboratively with the RFL to agree on a purchaser and sell the club. We now have all the ingredients that the RFL has requested and funds proven from three bidders plus the Super League Europe Ltd offer.
"The RFL will consider the bidders' business plans which are to be received by the Tuesday deadline, and all concerned do understand the need to bring this to a swift conclusion."
Last week the RFL set a deadline of 10 August for any final bids to be submitted for the Odsal club, who were docked six points for entering administration.
Guilfoyle told BBC Radio Leeds on Monday that he was hopeful the club was nearing salvation, ahead of his meeting with the RFL.
With three Super League regular season games remaining the Bulls are level on points with eighth-placed Hull KR.