NFL will consider instant replay changes, but 'sky judge' remains unlikely - The Washington Post
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Week 3 referee assignments – Football Zebras
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Drones, virtual reality and Pylon Cams: Cutting-edge tech gets an NFL tryout - Los Angeles Times
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Behind-the-scenes with NFL sideline technology: Microsoft and Bose power team communication – GeekWire
New England Patriots news 9/09/21 - - Pats Pulpit
replay official – Football Zebras
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What We Learned From Week 6 in the N.F.L. - The New York Times
Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
Bengals petition NFL to change uniform protocol - Cincy Jungle
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