Cronulla five-eighth Todd Carney hopes his match-winning hand against Brisbane on Friday night will give him the form boost he needs for the rest of the NRL season.

Carney was a class apart against the Broncos, having a hand in all three Sharks tries, booting three conversions from three attempts and slotting a decisive field goal in the 19-18 win at Suncorp Stadium.

The 27-year-old believes the performance, in his 150th first-grade appearance, was his best for the Sharks this season and sets him up nicely for a visit to his former club Sydney Roosters next weekend.

Carney spent two seasons with the Roosters, including his Dally M medal-winning year in 2010 when the Roosters made the grand final, before joining the Sharks ahead of the 2012 campaign.

A 14-all draw when the two teams met last year means neither has bragging rights but Carney was clearly looking forward to taking on the in-form Roosters, who lie second on the ladder with four wins from their past five matches.

"It's always good to play against a former club," Carney said.

"We haven't performed against a good team this year that's higher than us on the ladder.

"Who better to play against than the Roosters? They're in some form but I'm confident that we'll be in the arm wrestle against them and we've got to stick it out for 80 minutes."

Next weekend's clash will also pit Carney against the man who has replaced him in the NSW State of Origin team, James Maloney.

But the Sharks playmaker talked down any personal duel against Maloney, despite some feeling Carney should have got the nod to play in next Wednesday's series decider against Queensland.

"It's the same as playing against any other number six," Carney said.

"I don't think he'll be worried about me until Thursday and I'll be in the same boat. I can't really concentrate on him, they've got a lot of quality players.

"I've just got to prepare well for my own game and if I can do that, I'll bring a performance like I did tonight (Friday)."