Cronulla hooker Michael Ennis will face the NRL judiciary on Wednesday night to fight his grade-one careless high-tackle charge.
Ennis was cited for his hit on Matt Scott in Saturday's come-from-behind win over North Queensland.
With 38 carry-over points from a contrary conduct charge in round two, the Sharks rake would have been suspended for one week had he taken the early guilty plea.
But the club said on Tuesday it would challenge the ban.
If successful, he'll be available to play for NSW in the State of Origin decider should Robbie Farah be ruled out.
Farah has been named in the Blues' side despite fracturing his hand, but could still be a late withdrawal if he isn't fit in time for next Wednesday's match at Suncrop Stadium.
St George Illawarra forward Will Matthews will also front the judiciary to contest his grade one dangerous throw charge on Eels forward Anthony Watmough, and is also facing a possible one-week ban.
Four other players were charged by the match review committee including Warriors prop Charlie Gubb (grade one dangerous contact), Cronulla's Matt Prior (grade one dangerous contact) and Wests Tigers pair Delouise Hoeter (grade one Dangerous Contact) and Luke Brooks (grade one contrary conduct).
All four will escape a one-match ban after taking the early plea.