Dolphins sign safety Tyrell Johnson

Updated: April 5, 2012, 7:29 PM ET
Associated Press

DAVIE, Fla. -- Safety Tyrell Johnson has signed a contract with the Miami Dolphins as a potential replacement for departed starter Yeremiah Bell.

Johnson, a second-round draft pick by Minnesota in 2008, started 15 games for the Vikings in 2009 but a total of only five over the past two years. He had surgery in November to repair a torn right hamstring tendon and says he's 85-percent recovered.

Last month, the Dolphins released Bell, a starter at safety since 2006. They haven't ruled out re-signing him.

The Dolphins also announced Thursday that they have re-signed reserve linebacker Austin Spitler.


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