South Sydney skipper Cameron Murray has been given the green light by an independent neurologist to play in the Rabbitohs' sudden-death finals clash with the Sydney Roosters on Sunday.
Murray was taken from the field for a HIA in last Friday's round-25 game with the Roosters after less than 30 seconds.
He did not return to play and his latest concussion came after he suffered a head knock early on in State of Origin III this year.
On both occasions the 24-year-old lock looked groggy and unstable on his feet.
NRL players are given 11 days off after a concussion but can return sooner if they get clearance from an independent doctor.
Souths coach Jason Demetriou revealed on Saturday that Murray had passed all the appropriate tests to play in Sunday's elimination final against the Chooks at Allianz Stadium.
"He got clearance from the specialist so he's in a good place and is ready to go," Demetriou said.
"He trained pretty much fully on Thursday. Having that nine-day turnaround was important and allowed him to recover.
"Within five minutes (of the concussion) he felt fine. He's in a good headspace and he's done all the right things medically."
Demetriou said fullback Latrell Mitchell, who had a torrid night against his old club and was met with relentless booing, was in a strong head space.
Mitchell was sinbinned late on and will play his first finals game for the Rabbitohs on Sunday after missing the Bunnies' last two campaigns with injury and suspension.
"There's been that much white noise around Latrell and his availability at finals time," Demetriou said.
"(He would) be out there thinking 'all I want to do is get through this game, I don't get suspended or injured and I want to play finals' for a team that he loves.
"I've no doubt that played a part in how he prepared but he's prepared very well this week as the rest of the team has and we're up for what's going to be a big challenge."
Demetriou also welcomes back hooker Damien Cook (COVID-19) and centre Campbell Graham (concussion) to a side that went down 26-16 to the Roosters last week.
The Roosters blew Souths away to take a 20-6 lead at the break but Demetriou, who was forced to watch the game from isolation, said their willingness to go the distance would stand them in good stead.
"I thought the way we finished the game was particularly pleasing, to show that fight in us," he said.
"That's going to be important in our finals, we have to be able to stay in the fight, no matter what happens and find a way to keep competing."
