Jefferson was traded to the Minneosta Vikings from the Arizona Cardinals two years ago.
He was signed by the Cardinals as an undrafted rookie free agent in 2010 out of Fresno State.
Jefferson has 109 career tackles and two interceptions in four NFL seasons.
Jefferson ended last season with the Cleveland Browns after being released by the Vikings. He was placed on injured reserve with the Browns due to an ankle injury.
Jefferson worked out for the Browns last week.
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Aaron Wilson covers the Ravens for The Baltimore SunFollow @footballpost on Twitter for the latest news
This story originally appeared on Nationalfootballpost.com
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