Gloucester duo Sila Puafisi and Tavis Knoyle will appear before a disciplinary hearing in London on Wednesday evening to answer for the red cards received in a stormy west country derby against Bath.
Retrospective yellow cards are to be issued to Bath pair Nick Abendanon and Paul James in the form of post-match level one citings, but the five players sin-binned during Saturday's violent Aviva Premiership clash at Kingsholm have escaped censure.
Gloucester ended the game with 11 players after prop Puafisi and scrum-half Knoyle were sent off following separate incidents of foul play and centre Mike Tindall and hooker Huia Edmonds had been sin-binned.
Knoyle was dismissed after throwing punches at Leroy Houston during the dying minutes while Puafisi had been sent off 25 minutes earlier for a dangerous high tackle on Abendanon.
Abendanon has been given a Level One citing for striking Knoyle and James for stamping on Shaun Knight.
Bath also had three players yellow-carded - Carl Fearns, Matt Garvey and Dave Attwood - before completing a last-gasp 18-17 victory with a converted 79th-minute penalty try.
The Rugby Football Union is liasing with Gloucester over another incident in the chaotic encounter that saw an empty drinks bottle thrown at referee Tim Wigglesworth.
Wigglesworth appeared to have been targeted as he walked down the players' tunnel while being escorted from the pitch after the final whistle.