But the club will not lose any draft picks or premiership points.

The sanction follows a league investigation into the Power’s handling of Aliir Aliir after his head clash with teammate Lachie Jones during last Saturday night’s Showdown against Adelaide.

Port Adelaide club doctor Mark Fisher conceded he should have put Aliir through a SCAT5 concussion test after the head injury assessment.

Fisher’s error – branded a “big mistake” by Power coach Ken Hinkley – has brought intense scrutiny on the club this week.

It has come with head injuries now a massive issue in the game.

A number of former players are suing the league and their clubs, seeking compensation for the effects of concussion from their careers.

In a league statement on Friday, AFL general counsel Stephen Meade said Port Adelaide had understood the error and taken full responsibility for it.

“The AFL concussion protocols are some of the most stringent that exist in world sport, however, they require strict and consistent adherence to protect the health and safety of our players,” Meade said.

“In this instance Port Adelaide admitted that Aliir should have undergone SCAT5 testing at the time immediately following the collision on Saturday night.

“By not undertaking the test, and Aliir returning to the game without being subject to that further detailed assessment, Allir’s wellbeing was potentially at increased risk.

“The health and safety of all players is paramount, and this will continue to be the focus for our clubs and for the AFL.”

AFL chief medical officer Michael Makdissi will conduct a review of the Aliir incident before Port’s away game against Geelong on Saturday night.

Half of the Power’s fine will be included in their football department soft cap this season.

The balance will sit outside the cap unless a similar breach occurs before the end of the AFL and AFLW seasons next year.

AFL Players Association CEO Paul Marsh said concussion was “one of the biggest threats to our game and, as such, any head knocks must always be treated with caution”.

“It is vital we, as an industry, are conservative when dealing with these injuries,” he said.

Marsh said Port’s club doctor made a “serious mistake, but importantly both he and the club have taken responsibility for the mistake”.

“We acknowledge club doctors have an extremely difficult job and one that takes place in a high-pressure environment with real life consequences. This was a serious error of judgement that has rightly come under scrutiny,” he said.

“We acknowledge the AFL’s findings, announcement of further reviews of the incident, and that the club has accepted its penalty. This presents an opportunity for the entire AFL industry to reflect on its practices and protocols relating to head knocks. We have been in discussions with the AFL and the club around what can be learnt and improved as a result of this incident.”

-with AAP