Wayne Bennett has accused Penrith of running illegal and premeditated block plays to protect Nathan Cleary, warning South Sydney players would find their own way to respond if it wasn't stopped.
In a dramatic lead up to Saturday's qualifying final, Bennett confirmed he'd approached the NRL to complain about the tactic, arguing his players were unable to apply kick pressure on Cleary.
The South Sydney coach also denied claims his team had resorted to foul play against Penrith in previous matches, claiming the Panthers had in fact got away with more.
But Bennett's main issue is with kick blockers whom he claimed played a part in the lead up to three bombs that were allowed to bounce in last month's loss to the Panthers.
Cleary's kicking is crucial to Saturday's clash with Souths fielding a rookie fullback in Blake Taaffe.
It's understood the then-Queensland coach tabled a similar complaint during last year's State of Origin series, forcing a change in NSW tactics and opening the door for Christian Welch to shut Cleary down.
In the lead-up to the most important game of both team's NRL seasons, Bennett has taken the same approach.
"The bottom line is we haven't been able to get near Nathan and his kicks because we're getting blocked," Bennett said.
"Our kick chasers are getting blocked by illegal blockers.
"He was untouched in that game. We couldn't get near him.
"It's been going on for quite a while, the game has to address it at some stage now we have made it public. It's illegal.
"They know what's happening and know that there will probably be a response to it from our point of view if we're blocked again tomorrow."
Under NRL rules block players can remain stationary in front of the kicker or moving forward.
But Bennett claimed Penrith's players were constantly moving, with Isaah Yeo the man in the firing line.
"They are moving sideways and moving backwards and then making contact with shoulders and hands," Bennett claimed.
"From a very, very reliable source they practise it at training.
"You see how the players respond when the kick is about to come on the fifth and last tackle. It just doesn't happen by coincidence."
Bennett's comments came after Ivan Cleary claimed Souths had gone out of their way to rough up his players this year.
The Rabbitohs have given away just 87 penalties this season at an average of less than four per game, but a staggering 23 have come in the two matches against Penrith.
"You can only go off the evidence," Cleary said when asked if Souths had tried to rough his side up.
"They're giving away plenty of penalties and their discipline hasn't been where it needed to be.
"It speaks for itself, I think."
Bennett said that was unfair as his side had been unfairly picked up in those games
"You can't tell me that we give the least penalties in the comp and we go out in two games we try to create mayhem and do it deliberately," he said.
"It just doesn't happen."