Two potential blows to the Sydney Roosters ahead of the NRL finals.

Prop Dylan Napa's in hot water for a shoulder charge on South Sydney's John Sutton in their win to open round 26.

He's poised to miss three matches with an early guilty plea and four if he fights it, meaning he could miss the entire finals campaign.

Second rower Aiden Guerra is facing at least a week out for a chicken wing tackle on the Rabbitohs' Kyle Turner with an early guilty pea.