Port Adelaide midfielder Sam Powell-Pepper has signed a four-year contract extension that will see him tied to the Power until at least the end of the 2029 season.

It is a big show of faith by the Power who have backed in their tough utility despite him being missing from the team since Round 7 due to a ruptured ACL he sustained against St Kilda.

The Noongar man told the club that he was excited to put pen to paper and that he could not imagine plying his trade anywhere else.

"I've made so many great mates here and my family has been welcomed at the club with open arms," the 26-year-old said.

"While this year has been tough for me personally with my injury, it's taught me lessons about patience and resilience, and about being a great leader, even when you're not on the field.

"Being in the leadership group this year has been a career highlight for me, and I can't wait to come back stronger next year.

"To be able to hopefully be a one-club player is pretty special and to have that security knowing that I'm here until the end of 2029.

"I just love being at Port Adelaide, and I can't imagine playing anywhere else."

Powell-Pepper has played 142 games and kicked 106 goals for the club since being selected with Pick 18 in the 2016 AFL National Draft.

Until this year, he had featured in at least 16 matches each season since debuting for the club in 2017.

It has been a tough 2024 season for the West Australian who was included in the club's leadership group for the first time during the off-season.

He initially copped a four-week ban during the pre-season for a rough conduct charge on Adelaide's Mark Keane before returning to the team in Round 5 against Fremantle.

"It shows a lot of faith that the club has in me," he said.

"Obviously with the knee you have to earn your contract, but I think I have done that over the past two or three years."

Port Adelaide list manager Jason Cripps was rapt to secure the powerful midfielder on a new long-term deal.

"To lock him in to continue his time at Port Adelaide is really pleasing," Cripps said.

"Sam is an important member of our playing group, both on and off the field.

"He brings energy and positivity, and he boasts a formidable on-field presence, with his forward pressure and the way he attacks the ball."

Powell-Pepper is progressing well in his recovery after what he described as a 'lonely' couple of months.

"Obviously the first few months was pretty tough being on the bike every single day sitting behind a glass wall watching the boys train, it gets pretty lonely," he said.

"(But) to be out in the fresh air and running around the oval with the boys yelling out gives you some pep in your step.

"It's really motivated me for the next six months."