Roman Abramovich's 2003 acquisition of Chelsea shook-up the football world as a new dawn of super-spending began that saw the Russian billionaire make considerable investments in the club's recruitment policy, together with new training facilities.
Abramovich has overseen a staggering £750m spent on player purchases in a ten year period, as well as a £20m+ financing of the Cobham Training Centre in Stoke d'Abernon, Surrey.
However, had it not been for Sir Alex Ferguson's moxie and loyalty to Manchester United, Abramovich could have shocked world soccer even more as the Scotsman has recently revealed that Chelsea made a formal approach for his signature when Abramovich first took over the boardroom at the Blues.
'They used an agent to approach me when Abramovich first took over the club and I said no chance,' Ferguson reportedly told Charlie Rose during an interview with PBS.
Jose Mourinho is lauded as Chelsea's finest manager in modern history having collected back-to-back Premier League titles, two League Cups and an FA Cup during his three year tenure in West London. The club went on to lift the 2012 Champions League title under Roberto di Matteo and the 2013 Europa League cup under Rafael Benitez.
Sir Alex Ferguson, meanwhile, won five Premier League titles, a hat-trick of League Cups, an FA Cup trophy, a Champions League title and the FIFA Club World Cup during Abramovich's reign.
Would Ferguson have achieved more success at Chelsea or did he make the right decision to retire at United? Let us know in the comment section below!
image: © Andrea Sartorati