Forbes: World’s Most Valuable Sports Teams

Top 10:

1. Manchester United - $1.86 billion
2. Dallas Cowboys - $1.81 billion
3. New York Yankees - $1.7 billion
4. Washington Redskins - $1.55 billion
5. Real Madrid - $1.45 billion (2nd in gross revenue [$537 million])
6. New England Patriots - $1.37 billion
7. Arsenal - $1.19 billion
8. New York Giants - $1.18 billion
9. Houston Texans - $1.17 billion
10. New York Jets - $1.14 billion

Complete list here.