Leeson Ah Mau, Mitchell Barnett, Josh McGuire and Sam Thaiday have received NRL suspensions while Manu Ma'u will challenge a dangerous throw charge.
The latest injury and suspension news for all 16 clubs in the NRL Telstra Premiership.
Rabbitohs forward Tom Burgess is facing a two-match ban for a shoulder charge on Manly halfback Daly Cherry-Evans.
Broncos forwards Sam Thaiday and Josh McGuire will both serve one-match suspensions after accepting early guilty pleas for incidents in Friday's loss.
Dragons prop Leeson Ah Mau and Knights back-rower Mitchell Barnett are both looking at time on the sidelines, charged by the NRL match review committee.
Eels back-rower Manu Ma'u is in danger of missing his side's clash with Wests Tigers, one of two players charged from Saturday's games in Round 20.
Warriors forward Charlie Gubb has been suspended for seven matches after he was unsuccessful at the NRL judiciary on Wednesday night.
Four NRL players will sit out Round 20 with suspensions while Warriors prop Charlie Gubb will challenge the grading of his shoulder charge at the judiciary.
Knights pair Daniel Saifiti and Jake Mamo could miss their side's Round 20 match with the Sharks, cited by the NRL match review committee in Round 19.
Warriors forward Charlie Gubb is facing a seven-match ban after he was cited for a grade 2 shoulder charge by the NRL match review committee.