[1] As an official in the NFL, McKenzie is known for working Super Bowl XLIX in 2015 as a head linesman on the crew of Bill Vinovich.
McKenzie was hired by the NFL in 2008 as a head linesman, and was placed on the officiating crew of former referee Mike Carey, where he remained for four years.
[4] On October 28, 2012, McKenzie was assigned as the head linesman on the Week 8 game between the Washington Redskins and Pittsburgh Steelers at Heinz Field.
With 3:48 remaining in the fourth quarter, Washington cornerback DeAngelo Hall was taken to the ground by Pittsburgh wide receiver Emmanuel Sanders during the play.
Hall argued for a foul to be called while using expletives, making McKenzie retreat and ultimately throw his flag, along with side judge Don Carlsen.