Talking Tactics Retro: The best Chelsea manager of Abramovich era

Roman Abramovich bought Chelsea in the summer of 2003 and instantly reshaped English football. Within a month of the takeover he had spent 100 million on transfers, and although Claudio Ranieri did not win anything in the first year it wasn't long before Chelsea became one of the defining clubs of English football in the 21st century.

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