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The Lions added another defensive back with starting experience on Tuesday, signing former Jets cornerback Darrin Walls.Walls, 27, started 12 games in 2014 and had 40 tackles, 12 passes defensed and two interceptions, but he returned to a backup role in 2015, appearing in 13 games with just 10 tackles and three passes defensed.

The 6-foot Walls will likely compete for a role as a backup on the outside behind Darius Slay and Nevin Lawson, but after playing behind a loaded group of Jets cornerbacks last year — Darrelle Revis, Buster Skrine and Antonio Cromartie, there’s a chance Walls has more to contribute than he did in 2015.

The Lions could still look to add depth at nickel cornerback where Quandre Diggs remains the only option, unless other players show some newfound versatility. Besides Slay, Lawson and Walls, the Lions have Alex Carter, Johnson Bademosi and Crezdon Butler competing for playing time on the outside.

Walls went undrafted out of Notre Dame in 2011, and after playing for the Atlanta Falcons as a rookie, he spent the past four years with the Jets.

jkatzenstein@detroitnews.com

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