New Zealand forwards Issac Luke and Jeremy Smith are to challenge suspensions handed down by an international disciplinary panel for foul play during their side's 28-6 defeat by England.
Luke is contesting a two-match ban for an illegal leg twist on England scrum-half Rangi Chase on the stroke of half-time in Saturday's Gillette Four Nations match in Hull.
The South Sydney hooker had a formal caution hanging over him for a 'cannonball' tackle in the Kiwis' 26-12 defeat by Australia in the opening match of the tournament in Warrington.
Cronulla loose forward Smith is fighting a one-match ban handed down for illegal use of the forearm on England full-back Sam Tomkins earlier in the match.
Both cases will be heard by an international disciplinary panel in Leeds on Tuesday evening.
Because the Kiwis set off for London on Monday, ready to catch their return flights to New Zealand, the players will be represented at the hearing by Jim Doyle, chief executive of NZRL, and football manager Tony Kemp.
The hearing will be chaired by a high court judge and also comprise neutral Four Nations representatives Geoff Carr (Australia) and Mike Nicholas (Wales).
If upheld, the suspensions will be carried over into the NRL, where they can be wiped out in official pre-season trial matches.
Meanwhile, Wales prop Gil Dudson was handed a formal caution for his use of the knees on Australia winger Jharal Yow Yeh during his side's 56-14 defeat in Wrexham on Sunday.