Leacock made his professional debut as an eighteen year old for Fulham in a Worthington Cup defeat against Wigan Athletic. Leacock is an England international at Under-19 level. He was loaned to Coventry City twice, once in September 2004, and once in January 2005, by two separate managers. During both of these loan spells he saw regular first-team action. In July 2006, he was set to join Swansea City in £375,000 deal, but failed a Medical at the League One Side. However on August 10 2006, it was announced that he would join Derby County in a £375,000 transfer.
After a somewhat shaky start, he has gone on to become a firm fans' favourite at Pride Park, as a result of his constantly cool defending under pressure, which has re-generated chants of "Deano" around Pride Park, a chant formerly used to honour Derby favourites Dean Sturridge and Dean Saunders. He achieved promotion with the Rams at the end of his first season having played in the 1–0 play-off final success against West Bromwich Albion. He captained The Rams for the first time in the Boxing Day defeat to Liverpool. He scored an own goal in the 2-2 draw against Fulham.
FOOTBALL: SKY BLUES: Leacock Aims for a Little Bit of Luck; SKY BLUES BIG MATCH PREVIEW: WIGAN V SKY BLUES JJB STADIUM TOMORROW, 3pm; City Defender Is Determined to Halt Ellington - at Third Attempt;
Oct 22, 2004; Byline: ANDY TURNER DEAN LEACOCK is hoping it will be a case of third time lucky when he comes face to face with Nathan Ellington...