Player was standing a bit too close to the live mic, and Thursday Night Football got very NSFW

Whoops!

You never know what will happen when the ref turns his mic on in the middle of a game.

Unfortunately for NFL Network, a player wasn't thrilled with a holding penalty during the Chicago Bears tilt with the Green Bay Packers and let the crowd (and the worldwide viewing audience) know about it:

"F***ing s**t!"

Yikes!

Maybe move a bit further away from the players next time, ref.