Raiders sign S Sean Richardson to offer sheet

ALAMEDA, Calif. (AP) The Oakland Raiders have signed restricted free agent safety Sean Richardson to an offer sheet.

The Green Bay Packers have five days to match the offer Richardson signed Tuesday or lose him to the Raiders. The Packers will not receive any compensation if they allow Richardson to leave.

Richardson signed with Green Bay as an undrafted free agent out of Vanderbilt in 2012. He played 27 games with the Packers the past three seasons with 19 solo tackles on defense. Richardson has gotten the majority of his playing time on special teams.

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