Chelsea owner Roman Abramovich: His libel suit disputes a claim that Vladimir Putin ordered his 2003 acquisition of the football club as well as other allegations. Photograph:  Nick Potts/PA

Four Russian billionaires and the country’s state-owned energy giant have filed lawsuits against HarperCollins over a book it published last year abou(...)

Planet Business

Image of the week: Passion and politics It probably wasn’t the most interesting conversation he has had lately, but for UK prime minister David(...)