You will not hear the sound of the men working on the chain gang at NFL games this year, unless something goes wrong. Instead, you will see the league’s new Hawkeye tech, which determines precise ball placement on the field.

Fans got their first look at the NFL’s latest foray into the world of high-tech on Thursday night, when the system was used in the Hall of Fame game between the Lions and the Chargers.

“Sony’s Hawk-Eye virtual measurement technology will serve as an efficient alternative to the process of walking chains onto the field and manually measuring whether 10 yards have been met after the official has spotted the ball,” The NFL…

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