The Lions are a quarter of the way to a major upset against the Patriots tonight. Detroit is leading New England, 10-0, early in the second quarter.
Detroit's touchdown score came thanks to a challenge by head coach Matt Patricia. It was a good one, as officials determined Lions wide receiver Kenny Golladay was good for the score.
The challenge throw made by Patricia was a good one, too.
Check out the arm on the Lions' first-year head coach:
That is how you throw a challenge flag, other NFL coaches.
The Lions are up on the Pats, 10-0. The game is on NBC.