Seibold is tipped to be Bennett’s successor at the Broncos when the veteran coach’s contract expires at the end of the 2019 season.
The Rabbitohs will be in the hunt for a new coach should Seibold take up the job a the Broncos and could be interested in the veteran coach.
Bennett is keen to continue coaching beyond the 2019 season and has already been linked to the West Tigers job.
There were reports of a release clause in Furner’s deal that would allow him to opt out of the Rhinos and coach the Redfern club.
However, Leeds chief executive Gary Hetherington said Furner is committed to his contract.
“It’s all pure speculation. David is committed to coming here, there is no question about that,” Hetherington told The Sydney Morning Herald.