The days of measuring for first downs manually isn't over yet, but the NFL is moving closer to that point. The league has been testing optical tracking as a way to replace the chain gang as the ...

The NFL’s method for measuring first downs — two bright orange sticks and a chain — could soon be getting a technological upgrade. The league plans to test optical tracking for line-to-gain rulings in ...

The National Football League plans to experiment with optical tracking technology this preseason, a move that could eventually make the league's sideline chain gang obsolete, according to sources in ...

The NFL has reportedly tested optical technology to track first downs in multiple games, including at February's Super Bowl. If approved and implemented, the technology would replace the long outdated ...

The clock might be ticking on the chain gang’s time on NFL sidelines. The league tested optical tracking for line-to-gain rulings at MetLife Stadium, Hard Rock Stadium and Super Bowl LVIII this season ...

The NFL’s use of the decidedly low-tech 10-yard chain to measure first downs could be replaced by high-tech optical tracking. The league today revealed that a system to measure first downs ...

There could be a dramatic change coming to the way the NFL operates on a down-to-down basis. According to CBS Sports NFL Insider Jonathan Jones, the league tested optical tracking on line-to-gain ...