GEELONG will reply to the AFL's 'please explain' by Tuesday as the Cats brace for a potential sanction over the secret concussion deal with Jake Kolodjashnij.

The Cats board met on Monday morning to work out its response to the League, as Geelong captain Patrick Dangerfield said the club had "buggered up" but strongly defended CEO Steve Hocking.

Kolodjashnij, the man at the centre of the saga, was not at Cats training on Monday.

Pressure has been mounting on Geelong and the AFL since it emerged last Thursday that the Cats struck an agreement with Kolodjashnij, who had a history of concussion, that went unsighted by the League and the AFLPA.

"We acknowledge this has been a challenging time for Jake, our club and Geelong supporters," Cats president Grant McCabe said in a Monday morning statement.

"The board has met this morning to discuss our response to the AFL’s letter, that will be submitted by end of day Tuesday, 11 August.

"This will provide the club with the chance to detail the actions it took in navigating this complex matter. We welcome this opportunity.

"The club remains committed to providing our players with the highest standard of care and support."

Patrick Dangerfield controls the ball during the match between Melbourne and Geelong at the MCG in round 20, 2026. Picture: Getty Images

Hocking was Cats chief executive and current AFL chair Craig Drummond was the club president when the deal was struck two years ago.

On Monday, Dangerfield told Fox Footy that Hocking was one of the most "placid" people he had met and gave him his full support.

"He's a man of the highest integrity ... we're lucky to have him," Dangerfield said.

But Dangerfield acknowledged mistakes had been made.

"Clearly there were some parts that we buggered up as a club, we can be better," he said.

Kolodjashnij signed a waiver that meant he effectively took on legal responsibility for future brain trauma.

Over the weekend, Hocking defended the club in a radio interview and argued there was not a lot they would do differently, saying it was a complex matter.

Jake Kolodjashnij ahead of Geelong's clash with the Western Bulldogs in round six, 2026. Picture: AFL Photos

"As a leader it’s really important to take ownership and just lead through this. It’s not easy to do, but I wouldn’t change too much - we are a really good football club," Hocking said.

"I know there are people out there who say culturally we are maybe not as strong as we have been, but we do so much right and occasionally there might be one or two per cent we don’t get right.

"In this case that will be proven, I would suggest, that will be proven with the please explain. We don’t get everything right."

Drummond has also released a statement, apologising over the deal. He added he would not be involved in the AFL's assessment and deliberation of the Kolodjashnij situation.