Russian billionaire Roman Abramovich owes up to 1 billion pounds ($1.2 billion) to the U.K. after attempting to evade taxes on hedge funds investments in a scheme involving Chelsea Football Club, according to a joint investigation by the BBC, The Guardian, and The Bureau of Investigative Journalism published on Jan. 29.

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Abramovich's net worth is estimated to be around $9 billion, and he has Russian, Israeli, and Portuguese citizenship. He and other top Russian oligarchs were sanctioned after the beginning of the full-scale invasion in February 2022. The oligarch now resides alternatively in Tel Aviv, Istanbul, and Russia's Sochi.