Salford Red Devils scrum-half Theo Fages has requested to leave the club, owner Marwan Koukash has confirmed.
The France international, 20, has been at Salford since the age of 16 but has rejected the offer of a new deal, with his current contract ending in 2016.
"Theo did hand in a transfer request," said Koukash. "But if anybody wants to buy him, it would have to be for a world-record transfer.
"He is the hottest property in Super League."
Speaking to BBC Radio Merseyside after Salford's 32-12 defeat at St Helens on Friday, Saints head coach Keiron Cunningham praised the job Fages had done when Salford had no available recognised half-backs.
Fages worked with Saints assistant Sean Long during his time with the Red Devils, while France-based Catalans Dragons are also reportedly interested.
Koukash added: "We spoke a few months ago when he asked for a certain figure and we actually offered him more than that.
"He has made it clear he doesn't want to discuss a new offer and only wants a move from the club."