ORCHARD PARK, N.Y. (AP) The Buffalo Bills have shuffled their roster before opening a mandatory spring minicamp by signing defensive end Leger Douzable and offensive tackle Chris Martin.

Douzable has seven seasons of NFL experience, including the previous three with the New York Jets. He is reunited with Rex Ryan, who took over as the Bills coach last year after spending six seasons coaching the Jets.

Martin rejoins the Bills after spending part of last season on Buffalo's practice squad. He split the 2014 season between three teams and has yet to appear in an NFL game.

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Buffalo freed up room by releasing defensive end Claudell Louis and offensive tackle Keith Lumpkin.

The moves were announced Monday, a day before the Bills open a three-day set of mandatory practices.

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