Kirk Cousins delivered a signature moment to his career with a 509-yard performance capped by a game-ending TD pass in overtime.

Miami Dolphins quarterback Josh Rosen directs the offense against the Atlanta Falcons during the first quarter of a preseason game at Hard Rock Stadium on Aug. 08, 2019 in Miami Gardens, Florida. MIAMI GARDENS, Fla. - Josh Rosen threw for 191 yards and directed three scoring drives of more than 60 yards to help the Miami Dolphins win their exhibition opener Thursday against the Atlanta Falcons, 34-27. He's competing for the quarterback job with veteran Ryan Fitzpatrick, who worked the first two Dolphins series and led them to a field goal. Atlanta backup Matt Schaub threw for 172 yards and led the team to four scores in the first half. Michael Reaves/Getty Images Miami Dolphins quarterback Josh Rosen throws the ball away against the Atlanta Falcons during the second quarter of a preseason game at Hard Rock Stadium on Aug. 08, 2019 in Miami Gardens, Florida.