In this Aug. 30, 2015, file photo, Oakland Raiders linebacker Ray-Ray Armstrong (57) reacts during the first half of an NFL preseason football game against the Arizona Cardinals in Oakland, Calif.
In this Aug. 30, 2015, file photo, Oakland Raiders linebacker Ray-Ray Armstrong (57) reacts during the first half of an NFL preseason football game against the Arizona Cardinals in Oakland, Calif. Tony Avelar AP
In this Aug. 30, 2015, file photo, Oakland Raiders linebacker Ray-Ray Armstrong (57) reacts during the first half of an NFL preseason football game against the Arizona Cardinals in Oakland, Calif. Tony Avelar AP