The AFL Players Association has called for a review of LED signage at all league venues after cuts forced Jack Ziebell from the field.
The North Melbourne captain had to go to the changerooms during the third quarter of Saturday's loss to the Cats in Geelong for treatment.
He cut his knees on the boundary line signage.
Geelong pair Mark Blicavs and Zach Tuohy also suffered cuts on the electronic signage earlier this season at Perth's Optus Stadium.
"This is clearly an unacceptable outcome, particularly given the incidents at Optus Stadium from earlier in the season" players association official James Gallagher said in a statement.
"We've spoken to the AFL this morning and urged it to conduct a review of all LED fencing at AFL venues as a matter of priority.
"A safe working environment for all players is an absolute non-negotiable for our members and we trust the AFL and venues will take the necessary measures to ensure this doesn't happen again."
North coach Brad Scott was fuming post-match over the incident and Kangaroos star Shaun Higgins noted it forced Ziebell out of the game for an extended period.
"The inconvenience for us is that he missed a large portion of the game, because he had to go down into the room," he told Channel Seven's Game Day.
"It wasn't a major cut, but he missed eight or nine minutes."