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PORT ADELAIDE coach Matthew Primus has confirmed Brett Ebert, Cameron O'Shea and Simon Phillips are all in to a squad of 23 that travels to Perth on Friday.

Danyle Pearce and Darren Pfeiffer have dropped out of the 25 and will play in the SANFL over the weekend.

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Primus said the club would decide this afternoon which player would be the emergency.

The narrowing of the Power squad could pave the way for Brett Ebert to play with his cousin Brad for the first time.

[ Related: Primus - We're On The Right Track ]

Brad Ebert was traded to Alberton from West Coast at the end of last season and has played in each round of 2012 while Brett has been building form with the Magpies in the SANFL.

The teams will be announced at 4pm SA time.