Happy Anniversary - Today marks Roman Abramovich's 10 years as Chelsea's Russian owner

What is Roman Abramovich's football philosophy?

    As the secretive Russian billionaire has given just one unrevealed interview during 10 years at Chelsea, that's left for others to describe.

The popular image is of a ruthless and impatient owner, a man who has sacked nine managers and lavished £700m on transfer fees.

Yet Frank Arnesen, who worked for the 46-year-old for six years, says this isn't the man he knows. The Dane describes Abramovich as an owner who passionately believes in developing young players, wants his teams to play attractive football and is thoughtful and considered about everything he does.

Roman Abramovich was reported to have a personal fortune of 3.5bn when he took over the club. The following year, 2004, The Sunday Times said he was worth 7.5bn, putting him top of Britain's rich list. The 2013 Sunday Times 'rich list' places him fifth in the UK worth 9.3bn.
The Chelsea owner celebrates his 10-year anniversary at the club today.

He was believed to have caught the football bug watching Manchester United v Real Madrid in the Champions League in 2003.
Abramovich lost both his parents when he was four years old.
Adopted by his uncle, he dropped out of a Moscow college before making his fortune in oil deals in the early 1990s.
In 2000, he gained a law degree from Moscow State Law Academy in less than a year.

Chelsea honours won under Roman Abramovich's 10 years in charge:
Champions League: 2011-12.
Premier League: 2004-05, 2005-06, 2009-10.
FA Cup: 2006-07, 2008-09, 2009-10, 2011-12.
Europa League: 2012-13
League Cup: 2004-05, 2006-07.
FA Community Shield: 2005, 2009.   -13 Trophies

Chelsea managers during Roman Abramovich's 10-year ownership.

Claudio Ranieri: Sept 2000 - May 04
Jose Mourinho: May 04 - Sept 07 & June 13 - Present
Avram Grant: Sept 07 - May 08
Luiz Felipe Scolari: July 08 - Feb 09
Ray Wilkins: Feb 09
Guus Hiddink: Feb 09 - May 09
Carlo Ancellotti: June 09 - May 11
Andre Villas-Boas: June 11 - March 12
Roberto Di Matteo: March 12 - Nov 12
Rafa Benitez: Nov 12 - May 13.   -10 Managers

Chelsea's top 10 biggest sales under Roman Abramovich:
Arjen Robben (Real Madrid) 21m
Yuri Zhirkov (Anzhi Makhachkala) 13m
Claudio Pizarro (Werder Bremen) 10m
Shaun Wright-Phillips (Manchester City) 9m
Eidur Gujhonsen (Barcelona) 8m
Asier Del Horno (Valencia) 7m
Tiago (Lyon) 6.8m
Ricardo Carvalho (Real Madrid) 6.7m
Scott Parker (Newcastle) 6.5m
Robert Huth (Middlesbrough) 6m

Here are the major honours that have been won by Chelsea's main rivals over the past 10 years under Roman Abramovich's reign:
Manchester United: A Champions League, five Premier Leagues, one FA Cup, three League Cups and a World Club Championship.
Arsenal: One Premier League and one FA Cup.
Manchester City: One Premier League and one FA Cup.