That smile on Jerry Jones' face after Sunday night's comeback victory won't be disappearing anytime soon after Forbes magazine, in its annual NFL team valuations, estimated the Dallas Cowboys are now worth $4 billion.

That not only makes the Cowboys the most valuable franchise in the league for the ninth consecutive year, but the most valuable franchise in the world for the first time since 2007.

How 'Bout Them Cowboys? The Dallas Cowboys, with an estimated value of $4 billion, overtook Real Madrid to become the most valuable franchise in sports, according to Forbes magazine's annual rankings. Team Est. value Dallas Cowboys $4 billion Real Madrid $3.26 billion New England Patriots $3.2 billion New York Yankees $3.2 billion FC Barcelona $3.16 billion Source: Forbes magazine's annual valuations

Jones bought the team in February 1989 from H.R. "Bum" Bright for $140 million. Factoring for inflation, the value of the Cowboys has jumped 1,382 percent based on Forbes' new valuation.

Rounding out the top five most valuable NFL teams are the New England Patriots ($3.2 billion), Washington Redskins ($2.85 billion), New York Giants ($2.8 billion) and San Francisco 49ers ($2.7 billion).

Forbes says the average NFL franchise is now worth $2 billion, a 38 percent increase from last year that is due in part to a $39 million increase in national television rights fees shared among all teams.

The Cowboys became the most valuable sports team by passing Real Madrid ($3.26 billion). The Patriots and New York Yankees ($3.2 billion) are tied for third, with FC Barcelona rounding out the top five at $3.16 billion.