By Tanner Garrity According to the latest valuation rankings from Sportico, the Dallas Cowboys are the NFL’s richest franchise, coming in at an estimated worth of $7.64 billion. It’s a number that’s never been seen before, across any global sports league — despite owner Jerry Jones’s repeated pronouncements that he could sell “America’s Team” for $10 billion, if he really wanted to. It also represents a reshuffling at the top of North American sports. Earlier this year, Sportico awarded the New York Yankees a valuation of $7.01 billion, which was higher than any other MLB, NBA or NFL franchise…
