S Gerald Alexander signs with Dolphins

DAVIE, Fla. (AP) -- Safety Gerald Alexander has signed with the Miami Dolphins, who have placed receiver Roberto Wallace on injured reserve.

Alexander, a fifth-year pro, has made 30 career starts while playing with the Panthers, Jaguars and Lions. He was with the Dolphins briefly before the season and was released Sept. 3.

Wallace, a second-year pro, played in two games for Miami this season and had no catches.

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