AFL great Terry Wallace has revealed expansive lengths West Coast talent scouts are taking to find a replacement ruckman with star big man Nic Naitanui out of action next season.

Wallace has unveiled mature-aged VFL big man Tom Goodwin from Coburg as a prime target as the Eagles search for back-up for Naitanui, who will miss most of next season recovering from a full knee reconstruction.

And Wallace strongly predicts Fremantle will lure out-of-favour Geelong forward Shane Kersten back to his home state.

The 23-year-old is due to have medical tests and meetings with Dockers officials this week about a return west.