The chain may no longer keep us together. The NFL is moving forward this preseason with an optical tracking system for line-to-gain rulings, sources tell CBS Sports. The system had been tried out ...

The NFL will test an optical tracking system for line-to-gain rulings this preseason, Jonathan Jones of CBS Sports reports. If all goes well, the league will implement the technology for the ...

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 ...

We may soon no longer need Gene Steratore's index card to determine the line to gain in the NFL ... Eye tracking services are being developed to bring "state-of-art line-to-gain optical tracking ...

Optical tracking systems have been used sporadically in a few stadiums across the NFL, including in MetLife and Hard Rock, but this would be the first time it is used on a full-scale basis.

The NFL will implement optical tracking systems for yardage rulings this preseason with the potential for full-time implementation, a source confirmed to ESPN. The league considers this a test run ...

The days of the chain gang measuring first downs in the NFL could soon be numbered. The league tested optical tracking ... in addition to a Skeletrack System tracking the ball, players and ...

In the aftermath of the latest example of the NFL’s ... way that we test it is that we have all the actual data that will then support what we’re getting from the optical tracking data that's ...

The days of measuring for first downs manually isn't over yet, but the NFL ... this system is as accurate as possible and really calibrating across our multiple stadiums." The optical tracking ...

“Line to gain is probably the one that we’re closest to implementing, and the way that we test ... optical tracking data that’s being brought in,” Aponte said. It’s different from, but also similar to ...

The days of measuring for first downs manually isn’t over yet, but the NFL is moving closer ... to a place where this system is as accurate as possible and really calibrating across our multiple ...