Mitch Zadow and Balyn O’Brien have been added to Port Adelaide’s AFL list following a successful supplemental selection audition period. 

The Power invited five players to train on throughout the SSP, with Zadow and O’Brien both receiving their first AFL opportunity. 

Zadow is a mature-aged small forward who made the move to Adelaide from East Fremantle after two strong years in the WAFL. 

Turning 22 in March, Zadow impressed at WAFL level in 2025, slotting 18 goals from 14 games, including a dozen in his last seven games. 

O’Brien, a 19-year-old dogged defender, has impressed Josh Carr and the coaching group with his athleticism and toughness. 

He was part of the victorious South Australian under-18 national championships team in 2025, playing every possible game throughout the campaign. 

Featuring six times for Norwood’s league side last year including three finals, the teenager has continued to grow into his body and hone his craft. 

Balyn O'Brien and Mitch Zadow found out on Monday morning that their AFL dreams had been realised. Image: Matt Sampson.

“Mitch and Balyn have worked really hard to earn this opportunity,” list manager Jason Cripps said. 

“Mitch is a 21-year-old who we monitored in the back half of last year when his footy with East Fremantle really grew.” 

“He is a very clean ball handler below his knees and has hit the scoreboard on a consistent basis displaying a combination of power and work rate in the front half. 

“He shows strong defensive intent and hunts the opposition when the ball spills or on turnover. 

Zadow and O'Brien have been training with Port Adelaide over the pre-season. Image: Matt Sampson.

“Bayln had a consistent season in the SANFL under 18s and national champs, before breaking into the Norwood league side and holding his place through the finals. 

“He has sound defensive instincts and proved himself as being hard to play on. He has the size and athleticism to allow him to defend a variety of types and showed his strength in the air. 

“Thank you to Jaidyn Stephenson, Ted Clohesy and Blake Oudshoorn-Bennier for training with us across the pre-season. We wish all three boys the very best for the future.” 

Port Adelaide will take on West Coast this Sunday in Perth, for its final pre-season hitout for 2026.