Premiership-winning teammates Robbie Farah and Benji Marshall may end up also retiring together if the Wests Tigers duo decide that the 2018 Telstra Premiership season will be their last.

After winning the title with the Tigers in 2005, Marshall and Farah left the club in 2013 and 2016 respectively to go their separate ways.

As fate would have it they have ended up back at Concord Oval for the back third of the season - Marshall came from the Broncos in the pre-season and Farah from the Rabbitohs in round 16.

The two 30-somethings are also both off contract this year.

Farah revealed on Inside the NRL on Monday that Marshall's next move might also determine his.

"I haven't spoken to him about it [playing on] but I'm sure we probably will discuss it," Farah said.

"If he was to finish up this year, it would probably sway me to finish up. It would be nice to finish with Benj.

"If he does play next year, I don't know."

Farah says he has a tough decision to make and he hasn't yet heard what coach Ivan Cleary or Wests Tigers club officials have in mind.

Wests Tigers teammates Robbie Farah (left) and Benji Marshall.
Wests Tigers teammates Robbie Farah (left) and Benji Marshall. ©Gregg Porteous/NRL Photos

"There's a lot of things to weigh up," he told NRL.com

"When I originally went back to the Tigers I thought this would be a great way for me to end and play the back end of the season and hopefully win some footy games.

"Now I've gone back I'm really enjoying my time; I feel like I'm playing some decent footy; and the club is in a really good space.

"To be honest I haven't had that conversation with Ivan or anyone at the club, so I'm really not sure."

Farah has an ambassador role at the Tigers waiting for him whenever he does retire. He just celebrated his 250th game with the Tigers two weeks ago - he now has 277 after his time at South Sydney.

He could conceivably reach the NRL's prestigious 300-game club if he continued in 2019.

"You sit back and everyone says you'd rather finish your career early than go too long. And for me I probably felt that earlier in the year when I was stuck in reserve grade at Souths," Farah said.

 "I was thinking this isn't the way I wanted to finish my career."

But he added there was no guarantees he would still be playing a good style of footy next year.

"They are the things I have to weigh up - if I believe I still can play some good footy," he said.

"You don't want to go a year too long but then you hear other people saying you're a long time retired."