Bernard le Roux and Matthew Rees will both have disciplinary hearings in London on Wednesday after being issued red cards last week.
Both players were sent off for stamping in their respective matches.
Le Roux, the Racing 92 and France flanker, was issued with a red card during the Champions Cup, Round 2 match against the Scarlets at Parc y Scarlets on Saturday.
Le Roux was sent off by referee Greg Garner (England), in the 43rd minute of the match for an alleged stamp on the Scarlets prop, Phil John, in contravention of Law 10.4 (b).
Antony Davies (England) has been appointed as the independent Judicial Officer for the disciplinary hearing which will take place in London on Wednesday (November 25).
Rees, the Cardiff Blues replacement hooker, was issued with a red card during the Challenge Cup, Round 2 match against Harlequins at Arms Park on Thursday.
Rees was sent off by referee, Alexandre Ruiz (France), in the 73rd minute of the match for an alleged stamp on the Harlequins number eight Nick Easter, in contravention of Law 10.4 (b).
Pat Barriscale (Ireland) has been appointed as the independent Judicial Officer for the disciplinary hearing which will take place also in London on Wednesday.
Law 10.4 (b) Stamping/Trampling on an Opponent
Under World Rugby's Sanctions for Foul Play, Law 10.4 (b), Stamping/Trampling on an Opponent, carries the following sanction entry points – Low End: 2 weeks; Mid-Range: 5 weeks; Top End: 9 to 52 weeks.