Collingwood's men at the helm said the club "does not support booing champions of the game" after Magpies fans relentlessly targetted Lance Franklin.
Franklin was booed by sections of the packed MCG crowd during the Swans and Magpies round eight clash on Sunday.
Following the match both Sydney coach John Longmire and Collingwood coach Craig McRae voiced their displeasure.
On Monday, McRae, Magpies captain Darcy Moore and chief executive Craig Kelly released a statement apologising to Franklin and issuing a plea to their fanbase.
"Yesterday was the first time we played the Swans at the MCG in a decade – it provided an opportunity to respect a champion of the game and we fell short," the statement read.
"Buddy is a great of Australian Football – what he has achieved on the field over a long period of time demands a high level of respect.
"We hope the next time we get the chance to witness a champion of the game we treat them with respect, the same respect we ask for when it comes to our players and our champions. When our Club has the opportunity, we stand Side by Side with the greats of our game."
In their own statement, the Swans went one step further to call the conduct "offensive"
The club made a subtle reference to toll left by incessant poor crowd behaviour in the past, presumably that of the torment inflicted on Adam Goodes, and the dark cloud he exited the game under after one of the great careers pieced together.
"We have been here before and sadly it seems some people have not learned from the past," the Swans said.
"We encourage fans who witness any poor behaviour at the football – including repeated booing – to call it out immediately.
"To the fans who did not engage in such behaviour and enjoyed the game for what it was – we thank you."
Later, AFL chief executive Gillon McLachlan had his own say on the matter.
Both clubs and McLachlan made allowances for fans to engage with passion at AFL matches, but gave warning about taking things too far.
After listing Franklin's remarkable achievements in football, a tally irrefutably among the all-time greats of the game, McLachlan laid out his assessment on the recent string of mass booing in the opening rounds of the season.
Port Adelaide recruit Jason Horne-Francis, in just his second season of football and at just 19 years of age, has been the target of hostile crowd receptions through the first eight weeks of the competition.
"All players have the right to be treated respectfully on-field," McLachlan said in a statement.
"We want everyone to go to a game and express themselves, the passion for the contest and the voice of the crowd is what sets our competition apart, however we don't accept excessive booing as part of our game."
"Jason Horne-Francis is an emerging star of our game, Lance Franklin is an all-time great. Our view applies equally to both. In fact, no player should be targeted in that way.
"We should never take the champions for granted. Players like 'Buddy' are the best of our game and regardless of who you barrack for we should continue to celebrate all the champions accordingly."
