That assumption was wrong. Bridgewater not starting was a decision made by the Vikings coaches before the game, but there has been no further elaboration.
Teddy practiced all week, though, so the guess is that the #Vikings are holding him out for precautionary reasons. We'll see post-game.— Matt Vensel (@mattvensel) August 19, 2016
It doesn't appear that Bridgewater was injured during pre-game, and the coaches are holding him out just because it's the pre-season and they don't want to risk an injury.
Veteran QB Shaun Hill has started in Bridgewater's place, and the Vikings offense has struggled. All thee Vikings drives to start the game with Hill under center have ended in a Jeff Locke punt.
If there's more to report, we'll follow up, but as of right now, it doesn't appear that it was a health or injury reason that kept Teddy Bridgewater out of tonight's game. simply a coaching decision.