The Oakland Raiders have signed cornerback David Amerson to a four-year contract extension. Amerson joined the Raiders in September 2015 on a waiver claim from the Washington Redskins, where he played from 2013-15. In 14 games for the Raiders last season, he set a single-season franchise record with 26 passes defensed to go along with career highs in tackles (62) and interceptions (four). More...