Illegal motion explained: The Detroit Lions had an opening drive touchdown taken off the board on a David Montgomery to Jared Goff 1-yard touchdown reception, but it was negated due to an illegal motion penalty referee Craig Wrolstad explained after the game.

"There were a lot of moving parts on that play," Wrolstad said via a Kansas City pool report. "We had a quarterback go up to the line of scrimmage. He paused momentarily in the quarterback position, didn't get under center, but he walked up and stopped like he was the quarterback. Then, he went in motion, and they threw the ball to him for a touchdown.

"If the quarterback assumes the quarterback position and then goes in motion, he has to then stop for a second before they snap the ball. Because he gets out of the view of some

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