Emerging defender Jackson Trengove believes other Port Adelaide teammates will follow his lead by signing new contracts with the AFL strugglers.

Trengove snubbed lucrative offers to return to his home city of Melbourne to sign a new contract with Port.

"I couldn't be any happier to put my name forward first and, hopefully, there is a domino effect," Trengove told reporters on Wednesday.

Trengove's re-signing raised expectations at the Power that fullback Alipate Carlile and 20-year-old forward John Butcher would both re-commit to the club.

Trengove, 20, is the youngest member of Port's leadership group and had been wooed by Melbourne clubs including Richmond.

But he didn't want to desert Port in its darkest hour, with the club anchored on the bottom of the ladder in its worst season yet.

"You wouldn't really want to leave this football club when it is down the bottom," Trengove said.

"If you were ever going to leave, you would leave when it's on top, not when it's down the bottom.

"I think the young boys we have got are thinking the same thing and I think they'll sign pretty soon."

Trengove refused to specify the length of his new deal, only saying it was "long enough".

"The only decision was between family and this football club," he said.

"It wasn't really that I wanted to go to another football club. Obviously, Port Adelaide has done a lot for me and what we have here with (coach) Matthew (Primus) and the playing group, I can't be happier.

"Obviously, we have got a lot of work to do and we're the first to admit that ... I'll put my hand up to lead the charge."

Primus hailed Trengove's decision as a victory for the camaraderie of his playing group.

"You only really lose players, once in a blue moon, for a lot of money and then you lose them because there is not great camaraderie among the playing group," Primus said.

"And this playing group certainly has that (camaraderie).

"That is what keeps Jackson here and, hopefully, that is what keeps the next two or three or four guys we have got out of contract here."

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