Sheffield United boss Bryan Robson admits he knows who he wants to sign in January - but says "nothing has been sorted out for certain yet".Robson has already contacted other clubs as he is determined to strengthen in the New Year as he seeks to secure a Championship play-off spot.

Bolton duo Ivan Campo and Gary Speed are rumoured to be on Robson's shopping list, along with Middlesbrough's Lee Cattermole.

Manchester United defender Phil Bardsley and Aston Villa centre-half Gary Cahill, who have been on loan at Bramall Lane, are other targets.

"I know who I want," he told the Sheffield Star. "And the people concerned know who I want too.

"Their clubs are aware of the fact and contact has been made, but nothing has been sorted out for certain yet.

"We've asked them to keep us in touch with what is happening and we'll take things from there."

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