PORT Adelaide has received some welcome good news, with promising defender Jackson Trengove resisting the lure of a return to Victoria and agreeing to a new long-term deal with the club.

Trengove Commits to Power

Trengove set alarm bells at Alberton ringing earlier this year when he revealed he was weighing up a move back to Melbourne to be closer to friends and family.

PTV: Trengove's Message to Fans

It's believed the 20-year-old attracted interest from several Victorian-based teams, including Richmond, but said in the end the decision to stick with the Power had been an easy one.

"The only decision was between family and this football club. It wasn't really that I wanted to go to another football club," Trengove said on Wednesday.

"My family and my manager Tom Petroro were right behind the decision and really drove it.

"With me being happy with my mates here and the future that this football club has got, it was a pretty easy decision in the end."

Trengove is the first of a core group of out-of-contract young players to commit to Port Adelaide.

Victorian-raised full-back Alipate Carlile is yet to agree to terms with the club and has been linked to a return home, while emerging duo John Butcher and Andrew Moore also remain unsigned.

It's understood Moore, who has been plagued by groin injuries in his first two years at Alberton, is the closest of the trio to re-signing.

Trengove was optimistic his decision to remain at Port Adelaide would have a "domino effect" on his uncontracted teammates.

"I did go up to 'Rohdey' [football manager Peter Rohde] and Matty [coach Matt Primus] and did want to put my name out there first and really commit to this football club," Trengove said.

"Hopefully, there is a domino effect and the rest of the players that I'm pretty confident are going to jump onboard [will re-sign].

There were concerns consecutive record defeats at the hands of Collingwood and Hawthorn, and the negativity surrounding Port Adelaide's financial state would make it difficult for the club to convince players like Trengove to stay.

However, Trengove said the Power's current predicament, which sees them anchored at the bottom of the AFL ladder and on track to record their worst-ever season, formed part of his decision to re-sign.

"You wouldn’t really want to leave this football club when it is down the bottom. If you were ever going to leave you'd leave when it was on top," he said.

"We've got a lot of work to do. We're the first to admit that, but we'll put our hands up and I'll put my hand up to lead the charge of that over the next couple of years and to really work hard to get this football club where we belong, which is up the top."

Trengove declined to reveal the length of his new deal only saying it was "long enough".

The former NAB AFL Rising Star nominee, regarded as a future captain of Port Adelaide, joked Rohde had "mortgaged his house" to get the deal done but denied money had been an issue during the negotiation process.

Primus said Trengove's decision to stay was a vote of confidence for the club.

"For a young player from interstate to say, 'I'm committing to this football club and my mates at this football club' is terrific in the current environment we're in," Primus said.

"There's been a lot of conjecture, but in the end you really only lose players once in blue moon for a lot of money and then you lose them because there's not great camaraderie among the playing group.

"This playing group certainly has that no matter what you hear, read or talk about and that's what keeps Jackson here.

"Hopefully, that's what will keep the next two, three or four guys we've got out of contract here.

"It's a great story and it shows that the place isn't fractured and that we are a tight-knit unit. "

Katrina Gill covers Port Adelaide news for afl.com.au. Follow her on Twitter: @AFL_KatrinaGill