Abdoulaye Faye marked his return to the Hull side with the winning goal at Derby as the Tigers moved level on points with npower Championship leaders Cardiff following a 2-1 win.
The big defender headed home early in the second half as victory at Pride Park for the third successive season saw Steve Bruce's team climb up to second place in the table ahead of Saturday's fixtures.
Robert Koren put the visitors in front but Michael Jacobs levelled things up on the stroke of half-time.
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