Last night's Monday Night Football game was historic. It was the first NFL game in 11 years to be played in Mexico, and the first Monday night game outside the United States.
But there was also a high-tech menace: Someone flashed a laser pointer at Houston Texans players, at one point hitting quarterback Brock Osweiler in the eyes.
NFL security searched for the culprit, the league said. It's not clear if he or she was found.
You can see the bright green light on multiple Texans players here.
There was a couple times it definitely hit me in the eye and it was very noticeable.
At one point, the beam appeared to be directly aimed at Osweiler's helmet.
"I never want to say one thing's a difference-maker, but certainly having a laser zoomed in your eyeball definitely affects how you play a game," he said after the game. The Texans lost, 27-20, to the Oakland Raiders.
This isn't the first time
Mexico City's Estadio Azteca has had problems with laser pointers before. In a 2013 World Cup qualifying match, U.S. goalie Brad Guzan was targeted with green laser pointers.
Green laser pointers are much more powerful than typical red pointers, and many exceed legal standards, Slate reports.
And it's not the first time the NFL has had a laser problem -- the same issue plagued a 2014 game between the Detroit Lions and Buffalo Bills in Detroit.
In slow motion, the laser looks even more dramatic.
And this shot shows how well the lasers were aimed. It's right on the Texan player's helmet.