De Goey was suspended for three matches and was handed a $5k fine after lying to the club about how he broke his hand.
The 21-year-old injured his hand during an altercation at a St Kilda bar on Friday night, but initially told the club he broke his hand while playing with his dog.
The Magpies learned the truth about De Goey’s injury on Tuesday and immediately handed down the punishment, and the midfielder has now appeared on the club’s website in a short video.
De Goey was quite remorseful over his actions, and explained how he now needs to work on regaining the trust from the playing group following the incident.
“I’m really disappointed in my actions over the weekend… I’m disappointed in my actions, also also making up an excuse for what really happened to me and letting down my teammates and pretty much everyone at the club.
I’ve definitely lost some of the trust of the playing group, the coaching staff… the next few months are going to be real important for me to try to put my best foot forward and making sure I do everything I can do to regain that trust of the playing group.
I’d just like to apologise to all the fans and supporters, obviously the decision I made over the weekend is going to affect me playing for the next few weeks, but I can’t wait to get back out there.”