New behind-the-goals vision has revealed Fremantle had seven players inside defensive 50 during one of the final centre stoppages of their epic last-gasp win over Adelaide.

The error — which the AFL has admitted to — has led to calls from an AFL legend for contentious warning teams are given after their first 6-6-6 violation to be scrapped.

The Dockers held on to the four points in Adelaide despite a late Crows charge, thanks to the efforts of captain Alex Pearce, who delivered a match-saving smother in the final seconds of the contest.

However, minutes earlier, they got a slice of luck as umpires missed defender Judd McVee standing by himself in their back 50 while Adelaide’s Brayden Cook stood alone on the wing.

Fremantle had just reclaimed the lead with around six minutes remaining after Josh Treacy’s brilliant dribble goal.

However, despite Cook’s protests and the efforts of the out-of-area umpires to draw attention to the error, the centre ball-up went up without a warning to Fremantle.

Veteran journalist Caroline Wilson said Adelaide had gone to the AFL for an explanation over the incident.

“Adelaide’s footy boss, Adam Kelly, was at pains to say this had not cost them the game, but they did go to the AFL umpiring department to find out what happened,” she told Channel 7’s The Agenda Setters.

“The umpires have put their hands up today and admitted they got it wrong and conceded they are training and coaching better ways of being notified of a 6-6-6 infringement.”

The infringement would not have resulted in a free kick to Adelaide as it would have been Fremantle’s first warning, but AFL great Luke Hodge took a dim view of the error.

“How can they train that they know what the rule is?” he said.

“We should to scrap it, the stand rule you don’t get a warning, if you run through a man on the mark you don’t get a warning, so why we do we have it?

“Get rid of the warnings, it’s been in here since 2019, players will adapt as soon as there is big punishment on the line for it, so get rid of it.”

It’s the latest umpiring mistake to go against Adelaide after Geelong were incorrectly awarded a free kick in their eight-point win in round three, while last year Izak Rankine was denied a mark inside 50 against Gold Coast when trailing by less than a goal, while a goal umpire error in 2023 cost Ben Keays a goal in a match they lost by one point to Sydney.