Russian tycoon Alisher Usmanov is considering selling his 30 per cent stake in Arsenal after giving up hope of acquiring the club outright, according to The Financial Times.
The Uzbekistan-born billionaire has found majority owner Stan Kroenke unwilling to engage in takeover talks despite repeated attempts.
Usmanov had previously made a $1.3 billion (£990m) offer to buy out Kroenke, but the American said his 67 per cent share in the Premier League club was not for sale.
Russia's so-called oligarchs who have relocated to London could be under threat as there have been calls to deny them access to their lifestyles following the poisoning of former Russian double agent Sergei Skripal in Britain.
Usmanov and Roman Abramovich, who owns the Chelsea football club, are the most prominent among the Russian elite living in London.
Arsenal finished a disappointing sixth last season and missed out on a Champions League qualifying spot, with manager Arsene Wenger leaving after almost 22 years at the club to be replaced by Unai Emery.