The Dallas Cowboys never stopped collecting penalties throughout the season opener at FedEx Field on Sunday night, and it ended up costing them the game.

The Cowboys put together a 10-play drive in the last 1:50 of the game following Graham Gano’s second field goal. Tony Romo conducted a methodical drive that covered 58 yards and got the Cowboys inside the red zone.

But another penalty, the Cowboys’ 12th of the game, came at the worst time. Dallas tackle Alex Barron, filling in for injured Marc Columbo, wrapped up Redskins linebacker Brian Orakpo at the same time Romo was completing a game-tying touchdown pass to wide-open Roy Williams.

(Screen shot from NBC, which broadcast the Sunday Night Football opener)

As the flags flew, so did the whistles, and the game ended with the Redskins ahead 13-7.

"A few penalties in there were dictated by the crowd right there at the end," Redskins coach Mike Shanahan said after the game as he complemented the fans; announced attendance at FedEx Field was 90,670, the biggest opening-day crown in team history. "That was a big advantage there."