Safety Nate Allen spent five years with Philadelphia and missed consecutive games only once. He started 69 of the 74 games played in an Eagles uniform, which he removed for a final time after the 2014 season.
Allen signed a four-year, $23-million contract with the Raiders last offseason and was set to be a permanent fixture alongside Charles Woodson when he got hit by friendly fire.
Linebacker Ray-Ray Armstrong attempted an extremely tardy tackle in the regular-season opener, hit Allen from the side and strained his MCL. He was placed on short-term injured reserve, came back when eligible in Week 10 and, four games later, got cut blocked by an opposing receiver and went back on the shelf.