Rotherham United have signed former Nottingham Forest centre-back Kelvin Wilson on a one-year contract.
Wilson rejoined Championship side Forest from Celtic for £2.5m in August 2013, but has been without a team since being released in May.
The 30-year-old made 51 appearances in his second spell at the City Ground, having spent four seasons at the club prior to signing for Celtic.
He has also previously had spells with Preston North End and Notts County.
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