The NRL has issued breach notices to Cronulla Sharks and Manly-Warringah Sea Eagles following disparaging comments made about officials by coaches Shane Flanagan and Trent Barrett.
Sharks boss Flanagan read out a list of grievances at a post-match news conference following a controversial 15-14 extra-time defeat to North Queensland Cowboys that ended their NRL defence in week one of the finals.
Flanagan later continued his tirade in an interview with the club's official website and the NRL has proposed a fine of 30,000 Australian dollars.
Barrett disputed the decision to award a contentious late try to Tyrone Peachey as the Sea Eagles went down 22-10 to Penrith Panthers at Allianz Stadium.
A fine of 20,000 AUD has been recommended by the NRL.
The Sharks and Sea Eagles released separate statements saying they will review the breach notices before deciding on their next course of action.
A statement from NRL head of football Brian Canavan read: "In relation to the Sharks, there were separate breaches in the media conference following the game, in a separate interview with the coach which was sent to members and in an article published on the club's website.
"That is why the proposed penalty is higher than we have generally issued in the past."
He added: "Our message is clear – no matter the significance of the match or the specific circumstances, coaches cannot cross the line.
"The integrity of our match officials and the game needs to be protected."
The two teams have five business days to respond to the notice.
|Injections to play a friendly – Mourinho slams England over Jones handling|
|Chargers´ Rivers cleared to face Bills|
|Cook grabs RSM Classic lead|
|Nets PG Russell undergoes successful surgery|
|Championship Review: Sheffield United go top|
|Gloucester´s second-half surge stuns leaders Saracens|
|Schurrle: Dortmund couldn´t deal with Stuttgart counter-attacks|
|Conte laments Italy World Cup failure|
|Murray splits with coach Lendl|
|Hartley´s Toro Rosso deal will not affect Porsche status|
|Amiens 1 Monaco 1: Jovetic rescues point but champions give PSG boost|
|Dimitrov eager to keep momentum going after easy Carreno Busta win|
|Stuttgart 2 Borussia Dortmund 1: Bosz pressure builds after more Burki mishaps|
|Sunderland target Coleman steps down as Wales manager|
|Memorable Ashes Moments: Harmison sends down woeful opening wide as England´s defence wilts|
|Conte´s wife tells him to grow a beard – Conte grows a beard|
|Simeone rules out Everton job, promising ´a couple of years at least´ at Atletico|
|Pique to miss Barcelona´s Leganes trip over personal matter|
|Serena Williams reportedly marries Alexis Ohanian in New Orleans|
|UEFA closes Roma ´monkey chanting´ case|
|Swinson set to miss Six Nations after finger surgery|
|Don´t worry about Messi renewal, Valverde tells Barcelona fans|
|Cheika disrespected referee - Jones|
|´Griezmann? We´ll see´ – Valverde won´t rule out Barcelona pursuit of Atletico star|
|Cardinals & Larry Fitzgerald agree to 2018 contract extension|
|Uncapped Enever replaces injured Coleman for Twickenham clash|
|Goffin overcomes slow start & Thiem to set up Federer semi|
|Unsworth surprised to see Allardyce snub Everton|
|Six-week stadium ban for Sale boss Diamond|
|Mourinho has ´immense respect´ for Benitez|
|Howe backs Defoe to make World Cup squad|
|Everton speculation out of my control - Silva focusing on Hornets|
|Conte concerned by Manchester City´s breakaway lead|
|Man City results ´perfect´, but Guardiola demands improvement|
|David Luiz back in Chelsea squad, Conte confirms|
|Recovered Klopp offers Liverpool fitness update|
|Guardiola confident Aguero in ´perfect´ condition despite hospital trip|
|Ibrahimovic, Pogba and Rojo back for Manchester United|
|Fleetwood and Rose look set for desert duel, Fitzpatrick leads in Dubai|
|Heynckes compiling list of potential successors|
|Modric & Carvajal fit for Madrid derby|
|Bayern begin talks over Wagner deal|
|Pulis angered as Chadli sidelined for ´foreseeable future´|
|Neymar to join Ronaldo at Real Madrid? Zidane speaks out on PSG star|
|Edinburgh banking on Barclay after signing Scotland captain|
|Guardiola & Sane complete Man City award double|
|Five-try Holmes makes history as Kangaroos batter Samoa|
|Brave Chapecoense secure top-flight status|
|Mooney seals Australia Women´s Ashes victory|
|Tottenham have overtaken Arsenal as north London´s best - Sherwood|
|Brisbane Roar 3 Melbourne City 1: Papadopoulos at the double as hosts finally win|
|Seaman: Wenger must start Lacazette against Tottenham|
|I am more than just a goal machine - Ronaldo ignores Real Madrid criticism|
|Pujara shows resistance on another rain-affected day|
|Skriniar not interested in Barcelona speculation|
|France need Benzema, says Aulas|
|Warne: Australia look confused ahead of Ashes|
|Donald recovering after being hospitalised with chest pains|
|Youngs braced for ´confrontational and confident´ Wallabies|
|The Breakdown: A statistical look at Saturday´s rugby internationals|
|Van Dijk could leave Southampton in January|
|Sanchez snubbed Barcelona switch - Osorio|
|Malan posts century as England impress in Townsville|
|Atletico Madrid v Real Madrid: Simeone and Zidane face dangerous, defining Derbi|
|Aubameyang baffled by Dortmund suspension|
|Harden scores 48 points as Rockets soar|
|George, Hauritz and Tendulkar – Ashes surprise Paine´s last Test|
|He´s a class player - Hussey approves of Marsh recall for Ashes|
|Brown stars as Steelers crush Titans|
|Smith backs ´terrific´ Paine ahead of Ashes|