The Rebels have fined Amanaki Mafi and Lopeti Timani each 15,000 Australian dollars following an incident in Dunedin which saw the former arrested and charged for injuring with intent to injure.
Mafi allegedly assaulted team-mate Timani after a 43-37 defeat to the Highlanders on Saturday and, having appeared at court on Monday, he has been released on bail.
But the Rebels have punished both players for their involvement, according to a statement widely released to the Australian media, with reports suggesting the pair had broken curfew before the incident took place.
Mafi and Timani are both out of contract at the end of the season and, while the latter appears set for La Rochelle, the former had reportedly been in talks over a new deal.
The Rebels' statement suggested both players will leave.
"Notwithstanding that both Amanaki Mafi and Lopeti Timani were finishing at the Rebels this season and heading overseas to continue their playing careers, it is only appropriate, given the seriousness of the incident, to sanction both players with a significant fine," said chief executive Baden Stephenson.
"Along with the Rebels board, head coach David Wessels and club management, we have strived this year to re-build a culture which values respect and excellence in everything we do.
"The actions of these two players is totally contrary to our club's values and has tarnished the excellent work of so many in the club, both on and off the field this season.
"I only hope that both Amanaki and Lopeti genuinely reflect on and learn from this very troubling incident.
"The club has supported both players over recent days and will continue to ensure their well-being now and into the future."
Mafi's court case has been adjourned until August 3, with his bail set on the condition he does not associate with Timani.
Rugby Australia confirmed it may impose further sanctions on Mafi pending the outcome of the case.
|Saints QB Brees reaches another historic milestone|
|Biglia: VAR should have checked Nainggolan tackle|
|Gattuso not blaming Donnarumma for derby defeat|
|Seventh in Mexico will secure Hamilton´s fifth world title|
|Rooney fires DC United into MLS play-offs|
|Alonso slams ´amateur´ F1 rivals after latest crash|
|Spalletti fears lengthy Nainggolan absence|
|To the Max! Verstappen destroyed shoe fending off Hamilton|
|Icardi delight after Donnarumma error gives him another derby winner for Inter|
|Guardiola: Versatility the key for Stones|
|Vettel frustrated as mistakes continue to hamper title challenge|
|ECB refutes spot-fixing claims against England players|
|I thought we would do better - Hamilton queries Mercedes strategy|
|Inter 1 AC Milan 0: Icardi settles derby with dramatic late winner|
|Hamilton denied title party as Raikkonen wins in Austin|
|Patriots RB Michel out against Bears with gruesome knee injury|
|Kohli hails Rohit partnership after comprehensive India victory|
|Silva downplays his role after Everton super subs seal victory|
|Injured Bairstow out of final white-ball matches in Sri Lanka|
|Pliskova feeling confident after impressive start in Singapore|
|Big-hitting Imrul rescues Bangladesh in opening ODI|
|Leinster suffer late defeat at Toulouse, Newcastle snatch dramatic victory|
|Chargers pip Titans to dramatic London win|
|Everton 2 Crystal Palace 0: Substitutes Calvert-Lewin and Tosun clip Eagles´ wings|
|Thunderstorms push Andalucia Valderrama Masters into reserve day|
|Edmund masters Monfils to claim maiden singles title|
|Kohli and Rohit fire India to comprehensive ODI win|
|Manchester United didn´t play - David Luiz blasts Mourinho tactics|
|Svitolina out to silence ´haters´ in Singapore|
|Emre Can facing surgery on thyroid problem|
|Tsitsipas claims maiden ATP crown in Stockholm|
|Mariners boss Mulvey knows nothing of Bolt contract offer|
|WATCH: Vinicius Junior scores free-kick - then sees red!|
|Gronkowski ruled out of Bears clash|
|Khachanov enjoys home comforts with comprehensive Kremlin Cup win|
|Isner wants Wimbledon tie-break rule named after him|
|Hummels lauds ´outstanding´ Lewandowski|
|Liverpool´s defensive improvement no accident – Gomez|
|Pliskova overpowers defending champion Wozniacki in Singapore|
|Marquez dislocates shoulder celebrating MotoGP title|
|Henry taking positives from opening Monaco defeat|
|A-League Review: Mariners held as Bolt considers move|
|Dominant Svitolina ends Kvitova hoodoo in Singapore|
|Pereira warns Juventus to expect ´pumped up´ Manchester United|
|D´Antoni backs NBA to ´sort out´ Lakers-Rockets brawl|
|Mixed feelings for champion Marquez after Dovizioso crash|
|Bolt offered contract by Central Coast Mariners|
|Anthony accuses Rondo of spitting after Lakers-Rockets brawl|
|Martial insists he has good relationship with Mourinho|
|Bautista to replace Lorenzo at Phillip Island|
|Emery wanted Lacazette at Paris Saint-Germain|
|Wallabies centre Hodge suffers fractured ankle|
|Koepka claims top ranking with CJ Cup win|
|Dramatic Dovizioso crash gifts Marquez MotoGP title in Japan|
|LeBron´s home debut ends in defeat, Walker makes NBA history|
|Rondo, Ingram and Paul exchange punches in Lakers-Rockets clash|
|Dodgers to face Red Sox in World Series after beating Brewers|
|Valverde doesn´t care about extending Barca contract|
|Qualifying speed a ´positive surprise´ for Ferrari´s Vettel|
|I was in a different headspace – Hamilton revels in Austin pole|
|Barcelona can cope without Messi – Pique|
|Allegri: Juventus abandoned Genoa clash|
|Sale: Hospital visit was because of belly button ring|
|Valverde accepts Barcelona will miss Messi|
|No Messi or Ronaldo in El Clasico for first time since 2007|
|Barcelona have not won a Clasico without Messi since his debut|
|Ramos calls for Real Madrid unity after latest loss piles pressure on Lopetegui|
|Hamilton has title in sights after storming to Austin pole|
|Inter, El Clasico and more - the games Messi will miss with broken arm|
|End of Messi-Ronaldo duel good for LaLiga - Simeone|