Learn each @NFL official’s specific role on the football field: https://t.co/fyED7TiyBT pic.twitter.com/cEAULFfi0b— NFL Football Operations (@NFLFootballOps) August 25, 2018
Learn each @NFL official’s specific role on the football field: https://t.co/fyED7TiyBT pic.twitter.com/cEAULFfi0b