Manly could lose props Martin Taupau and Addin Fonua-Blake for two matches with the pair facing suspensions for shoulder charges.
Taupau was charged by the NRL match review committee for his 13th-minute hit on Parramatta's Suaia Matagi and fellow big man Fonua-Blake's came in the 80th minute on Corey Norman.
If the duo contest the charges and are found guilty by the NRL judiciary they will be rubbed out for three weeks.
Meanwhile, Melbourne Storm centre Cheyse Blair is free to play against the Warriors on Friday night after taking an early guilty plea to a dangerous tackle charge.
Blair was pinged for lifting Canterbury five-eighth Josh Reynolds in the 69th minute of the round-one match.
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"It's 90 points (grading from the match review) so no point going to fight it and then if I lose I'll be out for a week," Blair said.
