Barr was drafted by the Vikings and immediately thrust into an off-ball linebacker role despite him playing primarily an edge rusher role in college.
Having entered free agency with the second-most available cap space in the National Football League, the Jets are expected to make multiple other offseason additions after bringing in the 26-year-old pass-rusher.
Named to four straight Pro Bowls after a breakout year in 2015, Barr was one of four Minnesota players eligible for a contract extension last offseason.
Following this past season in Minnesota, the 26-year-old linebacker was scheduled to become a free agent.
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The one big advantage the Vikings likely had in their negotiations is the fact that Barr is familiar with their defense.
A nagging hamstring injury limited Barr to 13 games in 2018, his fewest since his rookie season.
The Jets are also reportedly hoping to utilize more of the linebacker's pass-rushing skills in their defense. Moreover, don't expect him to exclusively be an edge rusher.
Sports Illustrated's Albert Breer reported the Jets remain in the race for Ravens linebacker C.J. Mosley, and the team could land both.
It sounds like he'll be making the move from linebacker to edge in NY. They entered Tuesday with about $9 million to $10 million in cap space with Barr unsigned.