Bristol Bears have appealed against captain Siale Piutau's three-match ban.
The Tonga centre and Worcester's Andrew Kitchener were both given suspensions after accepting charges of striking an opponent during last Friday's Premiership match.
Bears coach Pat Lam has said he was "extremely frustrated" by the suspension, claiming Piutau only acted in self defence.
The hearing will be held at 17:45 BST on Thursday.
Piutau was sin-binned following the incident in the 79th minute of the game, while Kitchener was shown a red card.
The three-match ban would see him miss games against his old club Wasps on Sunday - Bristol's Premiership play-off rivals - and also next week's European Challenge Cup quarter-final with Newport Gwent Dragons.
Lam told BT Sport after the game: "You should be able to defend yourself if someone attacks you like that.
"Siale was attacked by two guys who started swinging at him."
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