And the Raiders were hoping Canberra Stadium's capacity on Saturday night might get lifted again for the grand final rematch that has it all.

Not only will it be Williams' first NRL game in six years, but the Roosters come looking for revenge after the Raiders ended their 10-game SCG winning streak six weeks ago.

Throw in the fact the two teams met in last year's controversial decider, plus it's Josh Morris's 300^th NRL game, and the hype is next level.

Stuart says the Williams hype is well deserved - an All Black and an NRL star who has done it all across two codes.

"I don't care if Sonny's getting $1 million a game. I think it's fantastic for rugby league to have a world-class athlete, a person who's played international rugby union, international rugby league, he's an All Black - one of the greatest teams of world sport," he said.

"He'll create a lot of hype if he does play. He'll be great to get some more numbers into the game to be able to watch him play.

"The hype of Sonny is the fact he's done it all. I just think it's wonderful to be able to have him in the game.

"The hype that's being created through his presence is really good for rugby league. In these tough times I'm sure our broadcasters are happy they can have him involved."

MORE RAIDERS NEWS

That hype has Raiders chief executive Don Furner chatting to the ACT chief health officer Kerryn Coleman to find out what crowd capacity they could be allowed to have.

Chief Minister Andrew Barr felt it could rise from the 3000 that was allowed on the weekend to 25 per cent capacity of 6500 over the coming weeks.

Whether that's in time for the Roosters clash is another thing, but Furner was hopeful.

"We speak weekly. This afternoon I'll get back on the phone. I'd love to get an increase," he said.

"We would've had 24,000 there this Saturday night - grand final [rematch], Sonny Bill Williams making his appearance. It's a real pity.

"If we could get to 6000 that would be great, but we're in their hands for that. All we can do is ask. We've got a good relationship with them. If it stays at 3000, it stays at 3000."

The Raiders got some good injury news for centre Curtis Scott, who was forced off in Canberra's 34-20 victory over the Canterbury Bulldogs on Sunday night.

He copped a knock on a plate in his lower leg, but has been cleared of a fracture, giving him a chance of facing the Roosters.

If he doesn't recover in time then Stuart said they had Semi Valemei, Harley Smith-Shields and Matt Timoko - who made his NRL debut on Sunday - as options.

They could all find themselves involved in one of the most hotly anticipated games of the season.

The Raiders have won six of their past seven games - a run that started against the Roosters in round 10.

While it's surrounded by massive hype, Stuart said it wasn't season defining - and put a subtle challenge to his team.

"We've still got improvement. I don't know if we're good enough to beat the Roosters," Stuart said.

"You've only got to look at their last game, but there's still a long way to go in the competition. This game isn't the be-all and end-all to the season I can assure you."

NRL ROUND 17

Saturday: Canberra Raiders v Sydney Roosters at Canberra Stadium, 7.35pm.