HARPER Montgomery will be Port Adelaide's official junior mascot when the Power runs onto the MCG for Saturday's second preliminary final against the Hawks.

Harper, 10, is the son of Port Adelaide's 2000 John Cahill Medallist and 2004 premiership player Brett Montgomery.

In a career spanning 204 games with the Power and Western Bulldogs, Montgomery was an influential midfielder for the black, white and teal for 126 games played between 2000 and 2005.

Since returning to Victoria and retiring from football, Montgomery has gone on to work as an assistant coach at Carlton and the Bulldogs.

Harper is a fanatical Port Adelaide supporter and particularly likes Chad Wingard and Hamish Hartlett.