The Dallas Cowboys have returned from a three-week training camp in Oxnard, Calif. and welcome the Baltimore Ravens to AT&T Stadium Saturday for their second preseason game. Head coach Brian Schottenheimer's team got off to a rough start on both sides of the ball last week.

With preparation for the preseason finale set to begin, we're looking at the Biggest Winners and losers from Baltimore's 31-13 preseason win over Dallas

The Cowboys had another rough preseason outing, losing to the Baltimore Ravens 31-13. Here are four things we learned in the loss.