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.
|For Real Madrid, nothing is impossible - Solari refuses to give up in title race|
|Inter 0 Sassuolo 0: Spalletti´s side labour at sparse San Siro|
|Marshawn Lynch will continue playing ´if it works out´|
|Simeone excited by improving Atleti|
|Jones ´cautiously optimistic´ over Farrell ahead of Ireland clash|
|Sarri questions Chelsea motivation after Arsenal surrender|
|Emery urges Arsenal to find balance after downing Chelsea|
|Koscielny hails Arsenal fighting spirit in Chelsea win|
|Pellegrini: It was not a good idea for Arnautovic to play|
|Iran v Oman: We´re not satisfied yet, says Al Mahaijri|
|Carbery sends Munster through and ends Exeter´s lingering Champions Cup hopes|
|Dyche defiant despite offside call|
|Hasenhuttl rates Everton win as Southampton´s best|
|Benitez looking up the table after Schar inspires win over Cardiff|
|RB Leipzig 0 Borussia Dortmund 1: Witsel restores six-point cushion|
|Swansea City 1 Sheffield United 0: McBurnie punishes wasteful Blades|
|Cardiff sign Sala from Nantes for club-record fee|
|Arsenal 2 Chelsea 0: Lacazette and Koscielny fire Gunners to rousing derby win|
|Huesca 0 Atletico Madrid 3: Dominant Atleti keep pressure on Barca|
|Rashford arguably league´s best striker with Kane out - Solskjaer|
|Hafeez plays steady hand as Pakistan punish Proteas´ patient approach|
|Klopp: Exceptional Salah would have scored even more up front!|
|Suspected ´serious´ Verratti injury leaves Tuchel with mixed emotions|
|We needed to rediscover our best form - Ramos pleased for Real Madrid fans|
|City bought Guardiola four full-backs! - Mourinho aims dig at Man Utd transfer policy|
|Valverde ´not frustrated´ amid De Jong & Vela links|
|Championship Review: Leaders Leeds beaten at Stoke as Villa end Hull run|
|Bournemouth rode their luck, admits Howe|
|Barca boss Valverde calls for clarity on RFEF rules|
|Bears rack up 107 points in routing Enisei en route to quarter-finals|
|Paris Saint-Germain 9 Guingamp 0: Verratti injured for rampant champions|
|Solskjaer: I´ll remember managing United for the rest of my life|
|Palace win a ´massive relief´ for Liverpool boss Klopp|
|Salah fourth fastest to 50 goals in Premier League history|
|Real Madrid 2 Sevilla 0: Solari´s side take over third spot|
|Watford 0 Burnley 0: Wood denied winner by contentious call|
|Liverpool 4 Crystal Palace 3: Salah reaches 50 thanks to Speroni shocker|
|Newcastle United 3 Cardiff City 0: Schar double moves hosts out of bottom three|
|Southampton 2 Everton 1: In-form Saints steer clear of trouble|
|Bournemouth 2 West Ham 0: Wilson and King sink Pellegrini´s men|
|Manchester United 2 Brighton and Hove Albion 1: Record-breaking win for Solskjaer|
|Pelicans star Anthony Davis out for one to two weeks with sprained finger|
|Verratti hobbles off for PSG against Guingamp|
|Brook ponders next move after missing out on Khan|
|Mick Schumacher: The Ferrari academy graduates who made it to F1|
|Thailand v China: Lippi aims to overcome War Elephants and reach last eight|
|I deserved red card, says Wolves boss Nuno|
|Mick Schumacher joins Ferrari Driver Academy|
|Jared Goff not worried about Superdome noise: ´When it´s loud, we love it´|
|Rooney urged Rashford to run at defenders|
|Former Springbok Lambie retires from rugby aged 28|
|Spygate: EFL confirms 11 clubs have made contact about Leeds|
|When it´s loud, we love it - Goff ready for New Orleans noise|
|Wolves 4 Leicester City 3: Jota hat-trick drama piles pressure on Puel|
|´Asparagus´ Zverev joins frustrated Djokovic in round four|
|Lowry takes Abu Dhabi title at the last after ding-dong Sterne battle|
|Rooney: United should go "all out" for Pochettino|
|Djokovic frustrated by ´unnecessary´ Australian Open floodlights|
|Jordan v Vietnam: Park expecting ´aggressive´ encounter|
|Serena and Halep book blockbuster, Osaka won´t throw in the towel|
|Brady: Mahomes has had ´spectacular season´|
|Halep not intimidated by Serena anymore|
|Farrell´s Six Nations preparations hit by thumb injury|
|Pogba confident Manchester United can reach top four|
|Alexander-Arnold embodies Liverpool spirit - Klopp|
|Stoinis shoots Stars to Melbourne derby victory|
|A-League Review: Glory held in stalemate as Sydney close the gap|
|DeMarcus Cousins ´felt like a kid on Christmas´ in Warriors debut|
|Alexander-Arnold signs long-term contract at Liverpool|
|Pochettino eyes Messi-esque role for Alli|