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MIAMI (CBSMiami/AP) — The Miami Dolphins made another move on Thursday as the team continues to shore up its defense.

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Dolphins defensive lineman Derrick Shelby has signed his restricted tender offer and will make $2.4 million this year.

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Shelby, who signed Thursday, provides depth in a front four upgraded with the recent signing of tackle Ndamukong Suh.

Shelby, a three-year veteran, saw significant playing time off the bench last year at both tackle and end. He had 21 tackles and three sacks.

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