The penalty comes one week after a police investigation into Motlop's actions when he intervened in a dispute at a nightclub between his girlfriend and Jacob Surjan's partner last week.
The club imposed the suspension after Motlop left the team hotel in Darwin to pick his girlfriend up from the airport early last Saturday morning when she arrived at 2am on a flight from Adelaide, despite the team playing Melbourne later that evening.
Port Adelaide football operations manager Peter Rohde says the decision was made by the football department in conjunction with the leadership group.
“While we understand this is a challenging time for Daniel in his personal life and he believed he was doing the right thing by his girlfriend, he has nevertheless not met the standards the club requires or accepts regarding professional preparation for a game,” Rohde said.
“We are very serious about setting high standards and Daniel has unfortunately not met those standards. He made a poor decision regarding his preparation and he accepts that.
“We will now work closely with Daniel to help him bounce back to be the player we know he can be.”
Motlop had an operation on an ankle in the pre-season which put him behind in his training and has struggled with a hamstring in recent weeks.
A decision on whether Motlop returns through the SANFL or AFL will be made next week.
