All of the teams on the list this year were American, except the soccer teams which were all from Europe.

The list shows that a team's value isn't necessarily correlated with its record of winning — the Dallas Cowboys and Manchester United both featured highly on the list.

"The values of sports teams have skyrocketed on the backs of ballooning media rights deals and more owner-friendly collective bargaining agreements that restrain player costs," Forbes wrote. "There are 52 teams across all sports worth at least $2 billion, up from one, Manchester United, in 2012."