There is something brewing nicely in the South Sydney back row.

Bayley Sironen, Liam Knight and Cameron Murray are all in their early 20s but the two second-rowers and lock are an exciting combination for the club.

Sironen said they have been getting great advice from Rabbitohs premiership-winners Sam Burgess and John Sutton who know a fair bit about back-row play.

"It's awesome to be a part of it. We've got some old heads that are still around like Sammy and Sutto there to guide us," Sironen said.

"It's a really promising having us all a bit younger and all getting some game time."

Another off-field mentor is older brother and Manly back-rower Curtis Sironen, who Bayley looks a lot like in his own edge play for the Rabbitohs. Perhaps that comes from all the post-game briefings the pair go through.

Cowboys v Rabbitohs - Round 14

"Being my brother I pick his brain a bit. I watch all his games to get some tips and always speak to him after my games. He's a massive influence on me," Bayley said.

"He pulls me up on things he thinks I'm doing wrong and when I'm doing things OK he lets me know that too. I speak to him a lot."

The brothers both made their NRL debut at Wests Tigers but five years apart – Curtis in 2012 and Bayley in 2017.

When 23-year-old Bailey ran onto Campbelltown Stadium in August 2017 against the Cowboys, Curtis was also a Sea Eagle.  

"It would be awesome to see it happen down the track one day," Sironen said of the siblings not only reuniting at the same club but playing a game together.

Liam Knight on the charge against the Bulldogs. ©Gregg Porteous/NRL Photos

"I can't see it happening soon unfortunately. In a couple of weeks we play Manly so it would be to get one over him then."

When it comes to words of wisdom on what it takes to cut it in the big time the brothers can also turn to dad Paul, whose glittering career with Balmain, NSW and Australia is the stuff of legend.

"I live with him so obviously he's always in my ear about little things. But he also tries to let me make my own way through," Bayley said.

"If I need him he's there to lean on too which is really helpful."

Bayley is slated to come from the interchange bench against the Cowboys on Saturday after starting the past three games, with two of those being 80-minute efforts.

Increased minutes and increased impact in 2020 are just the ticket for Sironen in his bid to secure a new contract with the cardinal and myrtle.

"I'd love to stay at Souths. I'll leave that up to my manager and not get too caught up in all that kind of talk," he said.

"Hopefully I can keep playing here and that sorts itself out."