Jerry Jones' Cowboys were just valued at $15.5 billion, making them the most expensive team in the NFL and sports as a whole. The Dallas Cowboys are America's Team, and the money backs that up. On Dallas' heels were the Los Angeles Rams ($12.7 billion), New York Giants ($12 billion), New England Patriots ($10.4 billion), and New York Jets ($10.35 billion). Sportico's valuation comes out on the same day in which the Los Angeles Lakers were sold. Mark Walter bought the team for $10 billion last year and is now selling the team a year later to Josh Kushner and Bob Iger for an NBA-record-breaking $12 billion.