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MIAMI (CBSMiami/AP) — The beginning of the 2015 NFL league year has brought a lot of news in a short amount of time.

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Reserve safety Michael Thomas has re-signed with the Miami Dolphins after missing the second half of last season with a chest injury.

The Dolphins also re-signed linebacker Kelvin Sheppard, who played mostly on special teams last year.

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Miami placed a one-year, $2.4 million second-round tender on defensive lineman Derrick Shelby on Tuesday, making it likely he’ll remain with the team.

Shelby played in 15 games last year and had three sacks.

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