Wests Tigers skipper Robbie Farah remains in doubt for Friday night's NRL meeting with Brisbane after completing only half of his side's final training run at Campbelltown Stadium.

Farah has been dogged by headaches and dizziness all week after being ko'd midway through the second half of Sunday's dramatic one point loss to South Sydney at the SCG.

"He only did half of the session ... that was always the plan, nothing (untoward) happened during the session," football manager Alan Mair said following training Thursday.

"We're not 100 per cent yet on if he'll play.

"He got through what he had to do, we're just going to make the decision tomorrow."

The loss of Farah would be a devastating blow to not only the Tigers but also the in-form No.9's chances of holding off a challenge from Bulldogs rake Michael Ennis for a NSW Origin berth.

The NSW side will be named on Monday with Ennis to have one last opportunity to press his claims in front of Melbourne and NSW coach Craig Bellamy on Saturday night.

Farah denied he would take the field just to further his Origin claims.

"For (the Tigers) it's an important game too," Farah said.

"We've had a couple of close losses that we need to bounce back from to stay in touch with the top eight.

"You don't want to go out there and play poorly because you're not 100 per cent fit either.

"If I do get on the field it will be to make sure that we get the win more so than trying to play for an Origin jumper."

The match also marks the return of one of the join-venture's originals in John Skandalis, the 32-year-old prop to play his first game in the NRL since 2006.

Skandalis has been called up from the NSW Cup where he has been playing with Wests Magpies to help the Tigers through an injury crisis which has seen the loss of four first-team regulars.

"We know what he can bring to the footy team, I'm sure he's not going to get out there and win us the game," said Farah, who played alongside Skandalis in the club's 2005 premiership-winning outfit.

"But while we do have the injuries we have the perfect replacement to come in and do the job for us."

The Broncos have Test centre Justin Hodges in doubt with a hamstring injury with 18 players travelling down to Sydney for the game.

Hodges trained in the wet in Brisbane on Wednesday but coach Ivan Henjak will wait until after Thursday night's final session to make a call on his availability.

Hooker Aaron Gorrell, Palmer Wapau and Josh McGuire all remained in Brisbane after being cut from the 21-man squad named on Tuesday.

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