PORT ADELAIDE youngster Travis Boak is a late withdrawal for the Power’s clash with North Melbourne at the MCG.

Boak will miss the game because of illness and his place in the side will be taken by Nathan Lonie, who will play just his sixth game of the year.

Lonie has played 39 games for the Power since crossing over from Hawthorn at the end of 2005.

The loss of Boak is sure to be a setback to the undermanned Port Adelaide midfield.

There are no late changes to the North Melbourne side.