The NRL will assess Cronulla's full response to a $30,000 breach notice before deciding if coach Shane Flanagan's apology has helped earn them any leniency.
The Sharks submitted their response to the breach notice on Wednesday, after they were granted extra time by the NRL earlier this week due to end-of-season functions.
The club confirmed earlier this week that they were hopeful of earning a downgrade in the fine, and had sought legal advice in preparing their response.
Manly have also submitted their response to a proposed $20,000 fine, after Flanagan and Sea Eagles coach Trent Barrett were both scathing of referees following their sides' week-one finals exits.
Flanagan issued an apology as part of an 1100-word letter to Sharks fans via their website on Monday, where he accepted he should not have acted the way he did in the post-match press conference following their loss to North Queensland.
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But while Greenberg was pleased to see their response, he said an outcome would also depend on the broader response of the club.
"It was good to see some contrition," Greenberg said.
"But ultimately we will have to look at the response in totality before we make any further comments."
It's also understood that the eight-day delay between Flanagan's comments and the eventual apology could also work against the Sharks.
The NRL was originally infuriated that the club also took their views to the club's website, and blamed officiating for poor crowds across the league.
It earned them the biggest fine against a coach in more than a season, and the first strike against Flanagan for abuse of match officials in his six-and-a-half seasons at the helm.
Meanwhile Manly have previously made clear their desire to have the fine slugged against their club reduced.
