Motlop was reported in the first quarter of the Power's match with the Sydney Swans and subsequently charged for engaging in rough conduct against Jesse White.
Young was charged with a similar offence after 'tunneling' Melbourne's Aaron Davey by bumping him in the back when the Demon had left the ground to mark the ball.
The charges carried 125 demerit points each but were reduced to 93.75 points by the players' decision to accept the reprimands, meaning Motlop and Young escape any match bans.
Hawthorn play Carlton at the Telstra Dome on Sunday, while Port Adelaide meet Geelong at AAMI Stadium on Saturday afternoon.
The winners of the two matches will play each other in a NAB Cup semi-final on March 7.
Dream Team watch - Daniel Motlop scored 58 Toyota AFL Dream Team points in Port Adelaide's win in round one of the 2009 NAB Cup.
- Clinton Young scored 85 Toyota AFL Dream Team points in Hawhtorn's win in round one of the 2009 NAB Cup.
