Jackson is "very happily retired" from the NFL, Jeremy Fowler of ESPN.com reports.

EDGE Analysis

Jackson went unsigned in 2017 after indicating he wasn't ready to retire coming off back-to-back seasons that put him on injured reserve with knee injuries. The 35-year-old totaled 540 catches for 9,080 yards and 57 touchdowns over a 12-year career with the Chargers and Buccaneers.