His famous name means he'll never quite shrug off his link to the Dragons but as he prepares for his second grand final in three years, Josh Morris insists he'll always be a Bulldog.

Sunday's grand final will be Morris' 128th match for the Dogs six years after being told he was not needed by incoming Dragons coach Wayne Bennett.

His departure was a tough pill to swallow for the Red V faithful who'd hoped to see the sons of club great Steve "slippery" Morris in tandem for the remainder of their careers.

The move has paid dividends for the 28-year-old who's emerged as one of the game's premier centres - with the NSW and Australian jumpers to prove it - in his six seasons at Belmore.

He believes the chance to build their own legacy at different clubs has propelled both he and twin brother Brett to their respective Test and Origin heights.

"I'm sure he'd agree it's worked out really well for both of us," Morris said.

"I certainly don't see myself as a Dragon, I'm a proud Bulldog.

"I've signed [for] another four years here that will take me to 10 years and I'm really glad I made the move to the Bulldogs. I haven't looked back since."

Their time at separate clubs has not severed the link between the pair who combined in Origin I this year to produce two of the most enduring images of the Blues breakthrough series win.

Josh, with torn knee ligaments, pulled himself from the the turf to stop a runaway Greg Inglis while Brett made the match-winning tackle with a dislocated shoulder late in the game.

"I knew he [Brett] was in a bit of strife when he landed on that try and to see him get up and jog it off like it was nothing, that inspired me ... it inspired all of us," Morris said.

"I didn't want to let him down as much as he didn't want to let me down so it was one of those things where you try to hang in there for your mate and your brother."

Their Origin heroics came in a year in which they also became the most prolific try-scoring siblings in premiership history with 196 tries - surpassing the four Mortimer brothers Steve, Peter, Chris and Glen.

It leaves Morris hoping to cap a year full of milestones with his first premiership, two years after falling short against Melbourne in the 2012 decider.

They'll start as outsiders against a red-hot Rabbitohs outfit but - in true Bulldogs fashion - Morris is lapping up his side's underdog status.

"People are writing us off ... I think that's what the Bulldogs have been built on," Morris said.

"The Bulldogs have always been a tough, resilient team. You learn that when you get to the club.

"We love it when people write us off and give us that underdogs tag. It just makes us go out there and prove a point.

"Dessie is always saying we're under the radar anyway. We know that the best team on the day will win on Sunday.

"It doesn't matter what price you are with the bookies, whoever's the best team on the day will win."

Josh, his arm in a sling, was one of the first in the sheds to congratulate Brett following the Dragons 2010 premiership triumph.

With Brett now sporting a sling following shoulder surgery last week, Josh hopes the roles can be reversed on Sunday.

"Mum actually mentioned that earlier in the week and said it could be a good omen," he said.

"I hope it is. He'll certainly be there and he'll be supporting me.

"The whole family will be there. They saw me lose in 2012 and the look on their faces ... they were heartbroken for me so hopefully I can walk off at full time and see smiles on their faces and tears in their eyes."

Josh admitted he would like to play alongside Brett at club level again but - with the ink barely dry on a four-year deal - it would have to be at the Bulldogs.

"I'd love to play alongside Brett again but I'm here for a long time ... so it's up to him," he said.