Russian oligarch Roman Abramovich just won a $6.5 billion legal battle against former friend and business partner Boris Berezovsky in the biggest personal court case in British history.

The months-long court case stemmed from a longstanding dispute in which Berezovsky claimed Abramovich had intimidated him into selling shares of Sibneft (later bought by Gazprom), the Russian oil giant the two had invested in during the 1990s.

Berezovsky sought $6.5 billion in damages in the case filed in London's High Court last October.

But the British judge on Friday found Berezovsky to be an "unreliable witness" and dismissed his claims in their entirety, according to the BBC.

Abramovich, the billionaire of the Chelsea football club, must be pleased—the ruling absolves him from paying billions of dollars to his former business partner, although Berezovsky could still file an appeal.

Life is pretty sweet for Abramovich. He was orphaned as a child, but today is worth an estimated $12.1 billion and leads a fabulous life, from his gorgeous girlfriend and palatial home to his massive security staff and celebrity-studded parties.