Australia lock Rob Simmons and New Zealand flanker Adam Thomson face disciplinary hearings in the wake of the opening weekend of autumn internationals.
Simmons was cited by Freek Burger of South Africa for a dangerous "tip" tackle on France's Yannick Nyanga on Saturday evening in Paris.
He faces an investigation under Law 10.4(j) for "lifting a player from the ground and dropping or driving that player into the ground whilst that player's feet are still off the ground such that the player's head and/or upper body come into contact with the ground is dangerous play."
Welsh referee Nigel Owens was overheard apologising to the France players for failing to issue a red card for the challenge because he could not identify the tackler.
Murray Whyte cited Thomson for stamping on Scotland's Alasdair Strokosch three minutes into the second-half of the All Blacks win at Murrayfield on Sunday, a potential breach of Law 10.4(b).
Hearings for both players will be held before independent International Rugby Board appointed Judicial Officers in London on Wednesday.