Roman Abramovich 's relationship with Vladimir Putin has faced a fresh wave of scrutiny since the Russian president launched a full-scale attack on Ukraine on Thursday.
Invading forces have closed in on Kyiv, the country's capital, but continue to face fierce resistance from defending forces which could foil Putin's plans.
The war in Eastern Europe has had a far-reaching impact which has extended to sport, with Sweden and Poland cancelling World Cup qualifiers against Russia and Formula One scrapping the 2022 Grand Prix in Sochi.
