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.
|Snedeker ends PGA Tour drought with Wyndham Championship win|
|Spalletti unconcerned despite Inter´s underwhelming start|
|Djokovic makes history with Masters clean sweep in Cincinnati|
|Real Madrid 2 Getafe 0: Bale gives Lopetegui first LaLiga win|
|IndyCar driver Wickens taken to hospital after crash|
|Sherman calls for NFL to scrap ´idiotic´ helmet rule|
|Sassuolo 1 Inter 0: New-look Nerazzurri given early reality check|
|Hughton: Shock United win does not alter scale of Brighton´s task|
|Navas keeps place as Courtois waits on Madrid debut|
|Ndidi signs long-term Leicester City contract|
|Pandya tears through feeble England to put India in command|
|Alonso creates motorsport history with victory at Silverstone|
|Kovacic: Chelsea and Sarri believe in me|
|Brighton loss a big lesson for United – Pogba|
|Mistakes hit United´s confidence - Mourinho|
|Brighton and Hove Albion 3 Manchester United 2: Murray lifts Seagulls to another win over Mourinho|
|Quickfire Moon treble sets up Rhinos win|
|Manchester City celebrate win with Silva´s son|
|Brentford 2 Sheffield Wednesday 0: Maupay stars as Bees buzz by Owls|
|Guardiola delighted with fit and firing Aguero|
|Waring marks 200th event with maiden title in Gothenburg|
|Guardiola dismisses Mourinho´s ´disrespectful´ accusation|
|Hulkenberg proud to survive in F1´s pay driver era|
|It´s here, it´s real, get on with it - Dyche dismisses Europa League excuse|
|Grujic agrees Liverpool extension, joins Hertha on loan|
|Martial starts as Lukaku, Young return for Manchester United|
|Fury-Wilder to be staged in November or December - Warren|
|Manchester City 6 Huddersfield Town 1: Aguero hits hat-trick as champions triumph|
|Burnley 1 Watford 3: Hornets end away day woes as Deeney leads destructive display|
|McFarland cleared to leave Scotland and join Ulster|
|Simeone wants ´only the best´ for Filipe Luis amid PSG links|
|PSG signing Boateng rated ´50-50´ by Bayern president|
|Cipriani a positive influence, insists Gloucester head coach|
|Bayer Leverkusen´s Bailey signs contract extension|
|Jesus and Aguero start for City as Mahrez misses out|
|Federer unsure what to expect from Djokovic duel|
|Chievo goalkeeper suffers broken nose, whiplash in Ronaldo collision|
|Simmons lauds influence of ´big brother´ LeBron|
|PSG´s Cavani selected by Uruguay as Coito fills in for Tabarez|
|Starc leads tributes after ´leader of the pack´ Johnson retires|
|Hazard confirms he is staying at Chelsea this month|
|Liverpool´s Firmino dreaming of Premier League title glory|
|Raiders rock the Roosters as NRL´s top-four battle hots up|
|Erasmus demands improved Springboks|
|Athletics pull even with Astros in AL West|
|Mercurial quick Johnson retires from cricket|
|MLS Review: Royer leaves it late for Red Bulls, Dallas bounce back|
|Crotty concussed, Folau injured|
|DFB president Grindel sorry Ozil felt ´deserted´|
|Busch picks up first win of season in Night Race|
|NASCAR results at Bristol: Kurt Busch picks up first win of season in Night Race|
|Woakes welcomes back ´big-game player´ Stokes|
|´Genius´ Messi still amazes Valverde|
|All Blacks, Springboks await Namibia at Rugby World Cup|
|Federer to face Djokovic after Goffin withdraws|
|Rain halts plays at Wyndham Championship|
|De Gea will extend contract soon, says Mourinho|
|Halep to meet Bertens in Cincinnati final|
|Frampton set for Warrington fight after dominant Windsor Park win|
|Messi makes LaLiga history with Barcelona´s 6000th goal|
|MC Alger defeat throws quarter-final chase wide open|
|Barcelona 3 Deportivo Alaves 0: Messi´s milestone goal sets up victory|
|Djokovic on course for Masters 1000 history after Cilic victory|
|It´s on! - Wilder fight confirmed after Fury defeats Pianeta|
|Like Cruyff before him, Guardiola favouring Foden´s style over substance|
|Ronaldo tweets debut delight after Juve win|
|Chelsea are not title contenders yet, claims Sarri|
|Bayern Munich boss Kovac planning for Boateng stay|
|Championship Review: West Brom crush QPR as Leeds stay perfect|
|Allegri pleased with Ronaldo despite goalless Juventus debut|