Mar. 13 2:09 PM PT3:09 PM MT4:09 PM CT5:09 PM ET21:09 GMT5:09 AM 北京时间2:09 PM MST4:09 PM EST3:09 PM CT1:09 UAE (+1)17:09 ET20:09 - Mitchell signed a five-year contract with Pittsburgh. Analysis: Mitchell played his first four NFL seasons with the Oakland Raiders and was a spot starter. His career blossomed as a primary starter last season for Carolina. Mitchell had 66 total tackles with 50 solo stops, 3 1-2 sacks, eight pass breakups, four interceptions and two forced fumbles during his only season in Carolina.