Oakland Raiders quarterback Derek Carr (4) stretches with teammates before an NFL preseason football game against the Green Bay Packers in Oakland, Calif., Friday, Aug. 24, 2018. (AP Photo/D. Ross …

Oakland Raiders quarterback Derek Carr (4) stretches with teammates before an NFL preseason football game against the Green Bay Packers in Oakland, Calif., Friday, Aug. 24, 2018. (AP Photo/D. Ross Cameron)