Roman Abramovich
Abramovich signaled a new dawn for the Premier League when he bought Chelsea in 2003. The controversial Russian oligarch transformed the club and made them a global force. They won many titles with the money that he earned from the energy industry and signed world-class players.

But his reign came to a crashing end after Russia invaded Ukraine. Abramovich’s mistake was his close relationship with Vladimir Putin. His failure to separate politics from business cost him his team because he became a global pariah. Now he’s a persona non grata in Europe (via Jersey Evening Post).