The Eagles might have gone fishing a bit for a "safety" valve.
The Birds and free agent defensive back Marlin Jackson agreed to a two-year contract Wednesday.
A former first-round draft pick by the Indianapolis Colts, Jackson is coming off a pair of season-ending knee injuries. He missed the second half of 2008 with a torn ACL in his right knee and returned in 2009 before tearing the ACL in his left knee in a November practice.
The Sharon, Pa. native doesn't think the injury will cost him any time.
"I would be capable of doing what is needed to as a football player by mid-May, June," he said to PhiladelphiaEagles.com. "By training camp, wherever I am, I'll be ready to go full go."
The 6-foot, 196-pound Jackson can play cornerback and safety. The Eagles have Asante Samuel and Sheldon Brown entrenched at corner but had difficulty settling on a full-time free safety last season after the departure of legendary free safety Brian Dawkins.
Jackson said he would play free safety, according to Sports Illustrated's Ross Tucker. That would mean that second-year Eagle Macho Harris has some competition for the starting spot.
"Nothing is promised," Jackson said. "I have to earn it. I played free safety my junior year at college and started eight games there my second year in the NFL. I'm very comfortable in it. I always played a physical corner. Physicality is nothing new to me. I'm very instinctive and aggressive. I can bring a lot of positives."
Jackson, 26, had 306 tackles and four interceptions in 56 career games with the Colts.