With quarterback Tony Romo on the sideline, rookie quarterback Dak Prescott upstaged heralded first overall pick Jared Goff, but Goff was also overshadowed by Sean Mannion, who led the Los Angeles Rams on a second-half comeback to defeat the Dallas Cowboys 28-24 in their first game after returning to California.
A crowd of 89,140, many of them Cowboys fans, made it the largest attendance in the history of the NFL for a preseason game.