Former Blades defender Rob Kozluk has completed his return to Sheffield United, signing a one-year deal.
The 32-year-old, who spent eight years at Bramall Lane before leaving for Barnsley three years ago, was not handed a new deal at Oakwell when his contract ran out at the end of last season.
Blades manager Kevin Blackwell said: "We know all about Kozzy. I have got to bring players in to build a squad and he's only too happy to come back. He will play a role for us."
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