New York Jets owner Woody Johnson has almost doubled his investment in 10 years. In 2000, he purchased the team for $635 million. Now, according to Forbes.com, it's valued at $1.17 billion. That puts the Jets ninth on the magazine's new list of the world's most valuable sports franchises. Their annual revenue is $227 million.

Here's the Forbes Top 10:

1) Manchester United (EPL) $1.83 billion
2) Dallas Cowboys (NFL) $1.65 billion
3) New York Yankees (MLB) $1.6 billion
4) Washington Redskins (NFL) $1.55 billion
5) New England Patriots (NFL) $1.36 billion
6) Real Madrid (La Liga) $1.32 billion
7) New York Giants (NFL) $1.18 billion
8) Arsenal (EPL) $1.18 billion
9) New York Jets (NFL) $1.17 billion
10) Houston Texans (NFL) $1.15 billion