There is a finite number of investors wealthy enough to run clubs like Liverpool and Newcastle United, and the latest news from the sports business world underscores just how small that number truly is. Since October 2021, Newcastle have been owned by theSaudi Public Investment Fund, the richest owners in all of sports who have spent billions on Tyneside and beyond. Liverpool’s Fenway Sports Group meanwhile are one of just two ownership groups to feature more than once in Sportico’s recent valuation of the top-50 most valuable sports franchises in the world. The pair’s respective ownerships ha…