Sheets worked out for the Raiders last month..
Sheets rushed for 1,598 yards last season and 197 yards in the Grey Cup championship where he was named the Most Valuable Player.
Sheets played collegiately at Purdue.
He has one carry for five yards during the 2009 NFL season with the Dolphins.
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Aaron Wilson covers the Ravens for The Baltimore Sun
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This story originally appeared on Nationalfootballpost.com
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