IN: T Marshall 4, C Moraes 11, B Zerk-Thatcher 25, M Zadow 39, B O’Brien 41 
OUT: Z Butters 9, J Lukosius 12 (injured), J Wehr 15 (omitted), J Horne-Francis 18 (suspended), M Georgiades 19 (concussion protocols) 

Teenager Balyn O’Brien will make his AFL debut this weekend as Port Adelaide prepares to host Fremantle at Adelaide Oval. 

The athletic defender arrived at Alberton as an SSP signing this past pre-season, impressing coaches with his desperate defensive style and professionalism since slotting into an AFL environment. 

An Eyre Peninsula product from Wudinna, the 19-year-old came through Norwood’s junior pathway before landing at the Power after missing out in the 2025 national draft. 

Talls Todd Marshall and Brandon Zerk-Thatcher return to the side, while tough forward Mitch Zadow comes in after withdrawing late last weekend with illness. 

Christian Moraes will play his eighth game at AFL level for the season, while Jacob Wehr has been omitted. 

Acting captain Zak Butters is sidelined with a syndesmosis injury, Jack Lukosius with a baker’s cyst issue, and Mitch Georgiades is in concussion protocols.  

Jason Horne-Francis also misses to serve his one match suspension. 

It’s the first time Port Adelaide has taken on Fremantle since Round 22 last year, with the Dockers getting up by six points at Adelaide Oval.  

Saturday’s game will begin at 12:45pm Adelaide time, and the match will be broadcast live to SA on Channel 7, Fox Footy and Kayo.