It has been revealed that Roman Abramovich has now invested over £1 billion in Chelsea since taking over in 2003. Has the Russian spent his money wisely?
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Chelsea transfer news
Chelsea set to offer impressive youngster five year deal
(Image) Chelsea skipper John Terry enjoying himself after Premier League victory
Here are their ten most expensive signings over the last 12 years rated…
10) Didier Drogba, £24m, 9/10
This move has been an unqualified success, with the Ivorian becoming a club legend. After a slow start the 37-year-old has managed an amazing 164 goals in 379 appearances for the Blues and led them to their one and only Champions League in 2012.