The clash of the titans has finished and Roman Abramovich has come out on top, winning his legal battle against exiled Russian oligarch Boris Berezovsky.

The Chelsea FC owner was said “to be a truthful, and on the whole reliable, witness” by Mrs Justice Gloster.

Mr Berezovsky had said that Abramovich had intimidated him into selling his shares in Russian oil giant Sibneft and was claiming £3bn in damages. Mrs Justice Gloster said the 65-year-old had not been an “inherently unreliable” witness.

The judge said in her ruling “On my analysis of the entirety of the evidence, I found Mr Berezovsky an unimpressive, and inherently unreliable, witness, who regarded truth as a transitory, flexible concept, which could be moulded to suit his current purposes.”

She dismissed Berezovsky’s claims that 45-year-old Abramovich had broken a promise on a deal which involved the Russian aluminium company RusAl “in their entirety”.

Mr Berezovsky said he was “shocked” at the decision and that Mrs Justice Gloster had rewritten Russian history.

There was a certain amount of mud-slinging during the three-month trail with Berezovsky calling Abramovich a “gangster” and Abramovich saying Berezovsky was “something of a megalomaniac”.

Abramovich was not in court but in a statement issued on his behalf said: “There were many serious allegations made against Mr Abramovich by Mr Berezovsky, including attacks on Mr Abramovich’s honesty and integrity.

“We are pleased that the judge has firmly rejected all such allegations and has described Mr Abramovich as a truthful and frank witness who showed a responsible and honest approach when giving evidence in this case.”

At one point the Queen watched the trial and talked to Mrs Justice Gloster