Jackson Thurlow celebrates a goal for Geelong. Picture: Colleen Petch. Source: Geelong Advertiser.
North Melbourne ruckman Braydon Preuss has been reported for striking Geelong's Jackson Thurlow in the back with his knee.
The incident happened early in the second quarter, as Thurlow took a mark after a kick-in from Marley Williams.
Preuss was late to the contest and struck Thurlow with his knee, giving away a 50-metre penalty and getting reported in the process.
The game against Geelong is Preuss' second in his AFL career after making his debut against West Coast last weekend.
Preuss was a late inclusion for Sunday's game after Todd Goldstein was withdrawn with a lingering ankle injury.