Fremantle defender Michael Johnson is set to miss the next 8-10 weeks after tearing his right hamstring in Friday night's loss to Richmond at Domain Stadium.

He had scans at the weekend and a subsequent medical report confirmed the severity of the injury.

Who will replace Johnno?

Johnson, who was playing his 200th game for the club, suffered the injury at the 11 minute mark of the first quarter and had to be subbed off.