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PORT Adelaide key defender Jackson Trengove has described as 'ludicrous' calls in the media for coach Matthew Primus' head.

Primus' position has come under fire after the Power's season-worst 37-point loss to Richmond last weekend, but Trengove said to lay blame for the performance on the coach was "a joke".

"I think it's absolutely ludicrous that they're coming out with these words about Matty and his position at this football club; we're 100 per cent behind him," he said.

"It's laughable that they're actually bringing this up in the media and saying that he hasn't developed our group and hasn't pushed us forward.

"We're not happy with what we put up on the weekend, I think we'd be the first to say that and Matty would be the first to say that, but to question his job is a joke."

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Trengove denied a pitiful second quarter from the Power, in which they conceded 10 scoring shots to one, had put Primus under pressure.

"You guys think he has but I don't think our football club or any of our player think he is in the gun," he said.

"I definitely don't think that's acceptable, that second quarter, but I don't think you can put that on the coach. It was the playing group out there doing the stuff and we didn't deliver.

"It was definitely the playing group's fault, not his fault."

Trengove said it was easier said than done to stop such blowouts from happening again, but pinpointed the side's tackling as a key area the Power could improve on.

"I don't think we've brought tackles to games … we did it really well at training, we had five or six drills that were based around tackling and we didn't bring it into that second quarter," he said.

"That's one of the [things] that let us down and let them get that run on."

As a member of the Power's leadership group Trengove said he shouldered a lot of the responsibility from last Sunday's loss.

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He said Brian Cunningham, a member of the South Australian Football Hall of Fame and former CEO of the club, had spoken to the leadership group, but Trengove stressed his address was organised long before the Power lost to Richmond.

"He was coming in whether we won or lost. It was good for us, we got a lot out of it," Trengove said.

"He spoke for an hour so. He had a fair bit to tell us, but it was nothing about football.

"It was a lot to do with leading, whether it was in business or out of the field."

Trengove said injured forward Jay Schulz was likely to line up against Fremantle on Sunday, but the club said Schulz's vision was still blurred over the weekend.

"He's been in and around the club and at training so he's a fair chance to play," he said.

The Power were still awaiting results from scans on Cameron Hitchcock's injured hamstring, but said he wouldn't play against Fremantle.

Harry Thring covers Port Adelaide news for AFL.com.au. Follow him on Twitter: @AFL_Harry.