While the full extent of Ben Picker's knee injury is still not known, Hall has made a number of changes to the forward pack to tackle Tumut at Twickenham on Sunday.

James Woolford moves into hooker to replace Picker while Blake Hewitt and Mia Tema have also been handed starting roles.

The moves see Jayke Hogan push into the front row with Jesse Corcoran and Kyle Richens dropping back to the bench.

After a win over Junee to start the season, before a loss to Gundagai last week, Hall is trying to find the right balance.

"It was early days and we hadn't had a full pre-season," Hall said.

"The guys who got into the starting squad had earned it but the guys who are starting this week have just been irresistible with their form.

"I don't think anyone could deny Blake has been very good and Mia has been good on his edge too. Hoges similarly.

"It's recognising the efforts but strangely the guys who have gone back to the bench were better than what they were against Junee as well."

Josh Ayers is the new face in the side after linking with the club from Canberra.

He's played well over 200 first grade games there and has impressed in reserve grade.

With Ayers, Richens, Corcoran Mick Dodson on the bench Hall has a number of forward options to call upon.

Up against the strong Blues pack he's looking to get his rotations right.

"We've got some big guys too and we're just looking to get it right," Hall said.

"Sometimes with those big guys and fast footy you need some rotation and Tumut have some fit forwards who can play big minutes at a good tempo.

"We just want to be able to match them."

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