York City Knights could still be in line for two players on dual registration from Super League club Castleford Tigers.
The clubs had been in talks about a deal but it has been put on hold after Castleford suffered a number of injuries and a suspension.
Knights general manager Ian Wilson told BBC Radio York: "Circumstances can change quite quickly.
"But the deal is certainly not dead in the water."
He added: "Everything seemed to be OK as of Friday and it was all going to be sorted out on Monday.
"Unfortunately Castleford have picked up a few injuries and one notable suspension following Saturday's game against Featherstone.
"Hopefully we can revisit it later this week or early next week. Unfortunately for this weekend it's going to be too soon."
Meanwhile York will be without dual-registration players Brooke Broughton and Ben Hellewell for around a month after they were recalled by parent club, Warrington Wolves.
Wilson said: "(Coach) Chris Thorman spoke to Richard Marshall who is one of the assistant coaches at Warrington last week.
"He informed him there may be a possibility that both players could be recalled for three-to-four weeks.
"They're Warrington players and Warrington have first call on those players.
"We'll have to see what happens going forward but we hope to see them back at some point."