Cardiff Blues hooker Kirby Myhill, Glasgow back-row Langilangi Haupeakui and Ospreys prop Dimitri Arhip will have disciplinary hearings on Wednesday.
Myhill has been cited for alleged foul play against a Scarlets player under Law 10.4 (k) – Contact with the eye/eye area.
Haupeakui meanwhile will face a red card disciplinary hearing after he received two yellow cards against Treviso last Friday.
Finally Arhip has been cited for alleged foul play against a Dragons player under Law 10.4 (a) – Striking another player, leading with the arm.
All three players will face a disciplinary panel via video conference.