NRL players union boss David Garnsey says Melbourne Storm's stars have given up enough without also surrendering their privacy to salary cap investigators.

Garnsey says he has no reason to suspect the Storm's players knew their payments were rorting the cap and they should not be asked to make highly personal records available.

The CEO of the Rugby League Players Association (RLPA) will meet NRL boss David Gallop on Tuesday before flying to Melbourne later in the week to hold talks with Storm players.

He and RLPA general manager Jamie Barrington attended Sunday night's 40-6 annihilation of the Warriors at Etihad Stadium before speaking informally with players at the post-match function.

Garnsey said the outcomes he was seeking would depend on what the players wanted.

"I've got a sense of things they might consider to be more important than others but it's not for me to be talking about those at the moment," Garnsey told AAP.

Storm captain Cameron Smith was also giving little away.

"As far as I know the (players' union) have still got to come down and talk to us," he told reporters on Monday.

"We're still a little bit unclear what path we're going to go down."

That is unclear with owners News Ltd ruling out funding a legal challenge and the NRL refusing to allow pay cuts to get under the cap.

An appeal by the club against the severity of the penalty, which included the stripping of two premierships, also seems highly unlikely.

"Melbourne Storm chairman Dr Rob Moodie has tonight confirmed that no decision has been made to appeal these penalties," a Storm statement said on Monday night.

Garnsey said he had no reason to suspect player involvement in the $1.7 million rort, but was open to the possibility he "might learn more" at Tuesday's meeting.

"I think the investigation itself is far from complete, which may be interesting given that the penalties have already been handed out," he said.

"At the moment I'm assuming that none of them are involved.

"If circumstances change then we'll address it on its own facts but at the moment there's no reason for me to suspect that any player is knowingly complicit in this."

And neither should they go beyond their minimal obligations in helping Ian Schubert and his team or the auditors appointed by News Ltd, he said.

"If they're proposing to have the players just give up their ordinary privacy rights and whatever rights they might have to keep things confidential, then we'd take a very dim view of that," he said.

"No one's approached me yet, be it the NRL or anyone else, to suggest that these records should be surrendered.

"It's a statement made by the chairman of the club, I think, on behalf of the players which he may not have been entitled to make.

"I don't know why there's a crying need for the players to suddenly be co-operating in a way which suggests they might actually be implicated in the situation.

"The players feel as if they have had a lot taken away from them already, they may be less than willing to be giving more."

The Storm players, who will reportedly be addressed by News Ltd boss John Hartigan on Tuesday, were downcast after Sunday's hollow win, Garnsey said.

"It's no surprise they're upset. They have been penalised by the penalty that's handed down, who wouldn't be?" he said.

"I've played in enough sporting teams to have a sense of what it might be like to win an NRL premiership but I have no concept of what it's like to lose two of them and that would cut anyone to the core and they are feeling that keenly.

"But they are extraordinarily, and perhaps uniquely in the NRL, a wonderfully united, professional group of footballers who were capable ... to go out there and play football about as well as it can be played."

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