Adelaide has extended the contracts of ruckman Kieran Strachan and defender Nick Murray for a further two years.

Both their contracts will now expire in 2025 after they joined the Crows as rookies in 2018 and 2021 respectively.

Strachan, 27, has won back-to-back SANFL Club Champion awards and is seen as an exciting ruckman eager to learn from 2020 Malcolm Blight medallist Reilly O'Brien.

Murray, 21, has become a regular fixture in the Crows' backline and ranks as one of the competition's best one-on-one defenders.

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Adelaide General Manager List Management and Strategy Justin Reid spoke about the importance of both players in building the future of Adelaide.

"The progress both players have made in their time at the Club has been very pleasing,” Reid said.

"For Kieran and Nick to arrive as rookies and earn an opportunity at AFL level through hard work is testament to their attitude.

"But they have also grasped their opportunity and performed strongly which shows they are more than capable at the top level and we look forward to their individual improvement and making our team better."

Strachan, a 202cm and 95kg ruckman, is hoping that another positive pre-season can allow him to crack into the best 22 at Adelaide.

"Each year I have felt that I've continued to improve in this environment," Strachan said.

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"Rob (Reilly O'Brien) and I push each other at training, we have good healthy competition, he makes me better and I hope to push him along as well.

"We're an exciting group and everyone came back to pre-season training early which shows the investment in the direction we want to go."

Murray has earned his place as a regular in the Adelaide lineup, playing 29 AFL games over the past two seasons.

"I'm grateful for the Club giving me another two years, it shows they've got trust in me and hopefully I can repay that," Murray said.

"I obviously came in pretty raw so over the last few years to be able to learn how we play and learn the system, there's still a long way to go, but I'm excited for what lies ahead.

"It feels like we are building a core group that has played a decent amount of footy together and now adding Izak (Rankine) and the new draftees I'm looking forward to being part of it."