Bradman Best has trained away from his NSW State of Origin teammates for a second straight day as he battles hamstring tightness.
Best did not warm up with the Blues on Thursday, ahead of an opposed session against St Marys' Ron Massey Cup side in the Blue Mountains.
NSW officials hope the centre will be fine to resume proper training on Saturday, after scans cleared him of any serious injury this week.
The signs were at least positive with no signs of strapping on his right hamstring, but it did lead to Joseph-Aukuso Suaalii returning to Blues camp to assist with the opposed session.
Suaalii has completed his four-match ban for hitting Reece Walsh high in Origin I, but cannot be called into the Blues side unless there is a fresh injury.
Under NRL rules, players cannot be brought in to feature in an Origin match from outside the 20-man squad, without an exemption due to an injury suffered in camp.
Best's ailment would not qualify as one, given he felt the hamstring tightness before the squad was named and it is therefore a pre-existing injury.
The Blues trained with a loud speaker of crowd noises blaring from the sideline, preparing players for the Suncorp Stadium atmosphere.