He was captain of the club's development side and signed a two-year contract in 2019.
[4] In October 2020, MacKenzie joined Scottish League One club Forfar Athletic on loan,[5] going on to make 14 appearances.
[3] MacKenzie made his first team debut for Aberdeen on 20 March 2021, in a Scottish Premiership game against Dundee United under interim manager Paul Sheerin.
[6] Following his debut, MacKenzie signed a new two-year contract that is due to run until 2023.
This biographical article related to association football in Scotland, about a defender born in the 2000s, is a stub.