Emerging Adelaide ruckman Reilly O'Brien has re-signed with the club for a further two years, tying him to West Lakes until at least the end of 2021.

The 23-year old took over the number one ruck duties at Adelaide from the injured Sam Jacobs this season and has been a shining light throughout the club's campaign.

O'Brien is averaging 14.9 disposals, four clearances and 34.7 hitouts in 14 games.

The youngster was pleased to commit his future to the Crows.

โ€œThe Crows have shown enormous faith in me, so it's fantastic to be able to sign a new deal and commit to the Club,โ€ Oโ€™Brien told the club website

โ€œItโ€™s been awesome to get the opportunity to play more senior footy this year and being able to contribute to the team.

โ€œIโ€™m really enjoying the challenge of getting the best out of myself each week and the help from โ€˜Docโ€™ Clarke and Sauce to improve my ruck craft has been great.โ€

Crows General Manager List Management and Strategy Justin Reid said Oโ€™Brien had earned his new contract on the back of hard work.

โ€œReilly had to wait patiently for his opportunity, but heโ€™s really seized it this year on the back of a really solid pre-season,โ€ Reid said.

โ€œAfter seeing Reilly develop over a few years, we knew what he was capable of and heโ€™s really growing as an AFL ruckman every single week.

โ€œWe always wanted to keep him at the footy club, so weโ€™re delighted heโ€™s signed for two more years.โ€