There has been many Centre-Half's at Bramall Lane over the years that have stuck in the memory of fans for different reasons.
matthew kilgallon
Today we give you ten players who have played in that position for the Blades - on Monday we'll give you a further two and following the results from both polls we shall release a final web poll where you can chose your favourite centre-half in the past ten years.
We aim to find four centre-half's for our Team of the Decade.
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You have until midnight on Sunday, 19th December 2010 to register your vote.