Career
He plays either at lock or blindside flanker and is a former Scotland under-20 captain. He started his career at Dunfermline Rugby Club and later joined Edinburgh. From the 2011-2012 season until the end of 2012-2013 season he played for Sale Sharks in the Aviva Premiership, and then Newcastle Falcons during the 2013-2014 Aviva Premiership season.
McKenzie rejoined Edinburgh in the summer of 2014, and scored his first try of this second spell at the club in the European Rugby Challenge Cup 2014-2015 quarter-final victory over London Irish.