THE career of Roosters fullback Anthony Minichiello is in grave doubt after doctors discovered he is suffering a serious neck injury.

In dramatic scenes at a training session yesterday, the former Australian custodian was hauled off the field when a fax from his doctor revealed he should not engage in any physical activity.

He will consult a specialist today and is definitely out for the Roosters' clash against Newcastle tomorrow. But some Roosters officials were privately fearing the worst last night.

Of greater concern is that the injury is separate to the back complaints that have plagued Minichiello for the past 18 months.

"I don't want to confirm anything because we just don't know," concerned Roosters coach Brad Fittler said. "He'll see the specialist and we'll go from there."

Minichiello only started complaining about neck soreness this week following his side's victory over the Panthers last Friday night and he had scans yesterday, which revealed a bulging disc impinging on his spinal cord.

It is a degenerative condition and not similar to the congenial neck problems that prematurely ended the careers of Brisbane captain Gorden Tallis and Dragons hooker Nathan Brown.

Minichiello is believed to be shell-shocked by the developments and still wanted to play against the Knights despite the medical advice. He was not available for comment last night.

His season has been dogged with back injuries but he has improved in his past two matches.

"We've been managing his back injury as best we can," Fittler said. "We've been giving him leverage in that regard but he has been giving it back by improving with every performance since then."

Meanwhile, Gold Coast captain Scott Prince scared Queensland selectors yesterday when he rolled his ankle in an innocuous training mishap.

Betting for the match between the Titans and South Sydney at ANZ Stadium on Monday night was suspended across all betting agencies but not before the last-placed Rabbitohs were reeled in from $3.10 to $2.80.

And there were immediate concerns that Prince might have been in doubt for the Origin decider - something Titans coach John Cartwright quickly dismissed.

"I've spoken to the doctor and he's confident he'll play on Monday," he said. "He's in no doubt for Origin if he's selected."

In other signing news, Canberra has re-signed five-eighth Terry Campese for a further two seasons after the club missed out on luring former Dragons captain Trent Barrett.

"I proposed to my girl [Sarah] the night before last, and it's just a bonus that this contract has come as well," Campese said.

But Campese's signature came at a loss with his Raiders teammate, veteran outside back Colin Best, signing with South Sydney for two seasons.

The Rabbitohs also renewed young backrower Shannan McPherson's contract for another two years. He has played in eight games this season.