Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
2019 NFL season - Wikipedia
NFL100: Before they were zebras, they were … candy canes? – Football Zebras
Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
NFL100: Officials with the longest NFL tenure (30+ seasons) – Football Zebras
Crews need to work together, get it right – Football Zebras
Newer piece of equipment helps officials keep track of downs – Football Zebras
NFL100: 30 years ago instant replay helped decide the outcome of a game … and it wasn't pretty – Football Zebras
8th on-field official is not likely to be implemented soon in the NFL, if ever – Football Zebras
The Gridiron Uniform Database: The Zebras Are Coming Hooray Hooray, The Zebras Are Coming Hooray Hooray!!