The Sydney Roosters will be without Victor Radley for the remainder of the regular season due to concussion.

The forward suffered his eighth concussion in the last five years over the weekend, and will now face the mandatory 11-day concussion stand down period, which he is no stranger to.

The Roosters are a club who have had plenty of concussion issues over the journey, and have also made no secret of the fact they will put the long-term health of their playing group ahead of on-field results.

That has been evident with the likes of James Tedesco sitting out for longer than they otherwise might have, and other players, most notably Boyd Cordner, retiring after concussion-related issues.

While Radley, who has already been confirmed as not named for this weekend's clash with the Dolphins, could yet return for the start of the finals after also missing Round 27 against the South Sydney Rabbitohs, there is no guarantee.

The number of concussions he has suffered in a short period of time will make Roosters medical staff wary, and they could lean towards giving him as many weeks off as possible.

While there is little doubt around the importance of Radley's role at the tri-colours, Trent Robinson's outfit are also likely to have a second chance in the finals, and also have plenty of forwards to cover.

This week, Lindsay Collins will join the starting side, with Nat Butcher, who has been in excellent form and getting through a tremendous amount of work in the middle third, shuffling across to lock.

Even calling Queensland Origin representative Collins into the side, the Roosters still have the likes of Spencer Leniu and Egan Butcher on the interchange bench.

Elsewhere, the Roosters are once again hopeful that James Tedesco will overcome an ankle injury, although he was named in the number one jumper for last week's shock loss to the Wests Tigers, only to be a late absence.

The loss to the Tigers has hurt the Roosters minor premiership chances, and given they have the worst for and against of the top three sides, it's now likely they'd need both the Penrith Panthers and New Zealand Warriors to lose a game over the final fortnight even if they do win both to claim the top prize.