Russian businessman Boris Berezovsky has lost a court battle with Chelsea Football Club owner Roman Abramovich.

Mr Berezovsky, 66, was seeking more than £3bn (€3.7bn) damages after accusing the 45-year-old Russian billionaire businessman of blackmail, breach of trust and breach of contract.

Mr Abramovich denied the allegations and denied that Mr Berezovsky was entitled to damages.

Mrs Justice Gloster ruled in Mr Abramovich's favour today after a trial in London which started in October 2011 and ended in January this year.

The legal fight centred on deals done in Russia following the break-up of the Soviet Union two decades ago.

Mr Berezovsky told the trial that Mr Abramovich had "intimidated" him into selling shares in a Russian oil company at a fraction of their value.

He also said Mr Abramovich had broken a promise made during a deal relating to a Russian aluminium company.

Mr Abramovich said Mr Berezovsky's claims were "wholly without merit".