The 19-year-old was named on the bench against the Gunners. However, Morton replaced Thiago Alcantara 84 minutes into the match.
The Scouser said that it was "brilliant" to make his Premier League debut in front of the Anfield faithful.
We wish Morton all the very best for the future. Hopefully the midfielder can have a long and successful career with Liverpool.
The video below was provided by the club's social media team.