Vikings cornerback A.J. Jefferson signs RFA tender

Vikings cornerback A.J. Jefferson, a restricted free agent, has signed his one-year contract offer from the club, the team said Friday. Minnesota had retained its first-refusal rights on Jefferson by tendering him a contract before the start of the 2013 league year. The 25-year-old Jefferson notched 37 tackles and defended five passes in 15 regular-season…