The incident in question occurred at the 62nd-minute mark of the Eels' two-point win, with the NRL Judiciary handing down a grade 1 crusher tackle charge on the Sea Eagles forward.
Olakau'atu can accept a $3000 fine with an early guilty plea, and would risk a two-match ban should he challenge the charge and be found guitly.
A two-game suspension would see Olakau'atu miss upcoming fixtures against Melbourne and the Warriors.
Keppie was charged for the action - which occurred in the 73rd minute of Friday match - and can accept a $1000 fine with an early plea.
The first offence charge can be raised to $1500 should Keppie opt to challenge the Judiciary's decision and fail.
Was this worth the 10 in the bin?
— Fox League (@FOXNRL) May 20, 2022
Like Keppie, Schoupp would risk a sanction of $1500 should he fail in a challenge at the match review panel.
The incident involving Schoupp and To'a occurred in the 62nd minute of yesterday's 16-6 win for the Knights, with Schoupp sin-binned for the tackle.