It seemed like a dream come true when West Ham took over the former Olympic stadium in Stratford at the start of the 2016-17 football campaign. But crowd trouble at the renamed London stadium soured the move. It will be particularly galling for Essex-based Sullivan, 68, who owns West Ham with David Gold (qv) and has a 51% stake in the club. There are more than £480m of net assets in Cardiff-born Sullivan's three main property companies. We value his West Ham stake at £375m – the owners rejected an offer of £650m last year. He has a £100m pension pot and his £7.5m Essex mansion has two swimming pools. Sullivan owned the Daily Sport newspaper for more than 20 years, selling the publication for £50m in 2007.