First-down spots limit the necessity for too many measurements – Football Zebras
Move the Chains. Don't focus on scoring a touchdown… | by Seth Miller | Medium
Everything you ever wanted to know about the crew that moves the chains in the NFL - ESPN
Football With First Down Chains Near The Fifty Closeup Stock Photo - Download Image Now - iStock
First-down chain breaks during Eagles vs. Giants, sending Philly fans, Twitter into frenzy | Sporting News
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Broken 1st-down chain temporarily pauses Giants-Eagles Divisional Round game - SBNation.com
NFL's first-down chains malfunctioned twice on road to Super Bowl. Is there a better way? - The Athletic
NFL chain gangs: Everything you need to know about the crews who man the down markers - Sports Illustrated
College fans might not notice new first-down clock rule, but some coaches are wary of its effect | AP News
Football Down Marker and Chains
The History of Using the Chains to Measure a First Down | NFL Films Presents - YouTube
Football Down Marker and Chains
First-down line coming to NFL stadiums?
Steelers First Down Measurement Versus Browns With Referee Explantation - Steelers Depot
Unchained? Technology exists if the NFL wants to measure first downs with precision | Broncos preview | Sports | gazette.com
Why the NFL Still Uses Chains to Measure First Downs
Why the NFL Still Uses Chains to Measure First Downs
/cdn.vox-cdn.com/uploads/chorus_image/image/58058933/ChainGangs_AP_Ringer.0.jpg "We Must Protect Football's Chain Gang at All Costs - The Ringer")
We Must Protect Football's Chain Gang at All Costs - The Ringer
NFL should at long last trade chains for lasers when marking 1st downs – The Denver Post
How much is the NFL chain gang's salary in 2023?
Chain crew - Wikipedia
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The Chain Gang in Football - Role and Responsbilities
NFL chain gangs: Everything you need to know about the crews who man the down markers - Sports Illustrated
