Re-signing with the Warriors might be Issac Luke's only option after Newcastle withdrew an offer to lure the veteran hooker across the Tasman.
The Kiwi international was weighing up whether to join the Knights next season after he met with coach Nathan Brown in Wellington two weeks ago.
Newcastle initially offered the 31-year-old a one-year contract with the club holding an option for a second year, but the deal was pulled due to concerns an upcoming shoulder operation could see Luke miss the start of next season.
The Knights are still chasing a dummy half but after losing interest in Luke have reportedly turned their attention to signing off-contract Cronulla No 9 James Segeyaro.
"The Issac Luke negotiations are dead," Knights recruitment boss Troy Pezet told the Newcastle Herald.
"There are issues in and around Issac's shoulder surgery and when he would be available and we made a decision not to pursue it."