OAKLAND, Calif. (AP) — Dallas kept its playoff hopes alive by the slimmest of margins. Dak Prescott converted a fourth-down sneak by the width of an index card to set up Dan Bailey's go-ahead 19-yard field goal, and Derek Carr fumbled the ball inches from the goal line with 31 seconds left to give the Cowboys a 20-17 victory over the Oakland Raiders on Sunday night. "We know where we're at, our season is on the line as far as going to the playoffs," tight end Jason Witten said.