A multi-billion-dollar court fight involving Chelsea football club owner Roman Abramovich, and his former business partner Boris Berezovsky, is underway in London.<br /><br />Berezovsky has accused Abramovich of using political intimidation to force him to sell Russia's fourth-biggest oil firm at a knockdown price.<br /><br />Abramovich, the world's 68th richest man, with an estimated fortune of $12bn, denies the charges and says he merely paid Berezovsky money for political cover and protection.<br /><br />Al Jazeera’s Nadim Baba reports.
