Den amerikanska tidskriften Forbes har återigen rankat världens 50 mest värdefulla klubbar, något man gör årligen. 2017 domineras av klubbar i NFL då alla utom tre är med på listan. MLB har åtta klubbar med på listan, upp en från i fjol.
Antal klubbar från respektive liga:
NFL: 29
MLB: 8
NBA: 7
PL: 4
La Liga: 2
Bundesliga: 1
MLB: 8
NBA: 7
PL: 4
La Liga: 2
Bundesliga: 1
| Lag | Liga | Värde i USD | Skillnad | |
| 1 | Dallas Cowboys | NFL | 4,20 mdr | 5% |
| 2 | New York Yankees | MLB | 3,70 mdr | 9% |
| 3 | Manchester United | PL | 3,69 mdr | 11% |
| 4 | FC Barcelona | La Liga | 3,64 mdr | 2% |
| 5 | Real Madrid | La Liga | 3,58 mdr | -2% |
| 6 | New England Patriots | NFL | 3,40 mdr | 6% |
| 7 | New York Knicks | NBA | 3,30 mdr | 10% |
| 8 | New York Giants | NFL | 3,10 mdr | 11% |
| 9 | San Francisco 49ers | NFL | 3,00 mdr | 11% |
| 10 | Los Angeles Lakers | NBA | 3,00 mdr | 11% |
| 11 | Washington Redskins | NFL | 2,95 mdr | 4% |
| 12 | Los Angeles Rams | NFL | 2,90 mdr | 100% |
| 13 | New York Jets | NFL | 2,75 mdr | 6% |
| 13 | Los Angeles Dodgers | MLB | 2,75 mdr | 10% |
| 15 | Bayern München | 1. BL | 2,71 mdr | 1% |
| 16 | Chicago Bears | NFL | 2,70 mdr | 10% |
| 17 | Boston Red Sox | MLB | 2,70 mdr | 17% |
| 18 | Chicago Cubs | MLB | 2,68 mdr | 22% |
| 19 | San Francisco Giants | MLB | 2,65 mdr | 18% |
| 20 | Houston Texans | NFL | 2,60 mdr | 4% |
| 20 | Golden State Warriors | NBA | 2,60 mdr | 37% |
| 22 | Philadelphia Eagles | NFL | 2,50 mdr | 4% |
| 22 | Chicago Bulls | NBA | 2,50 mdr | 9% |
| 24 | Denver Broncos | NFL | 2,40 mdr | 24% |
| 25 | Miami Dolphins | NFL | 2,38 mdr | 28% |
| 26 | Green Bay Packers | NFL | 2,35 mdr | 21% |
| 27 | Baltimore Ravens | NFL | 2,30 mdr | 19% |
| 28 | Pittsburgh Steelers | NFL | 2,25 mdr | 18% |
| 29 | Seattle Seahawks | NFL | 2,23 mdr | 19% |
| 30 | Minnesota Vikings | NFL | 2,20 mdr | 38% |
| 30 | Boston Celtics | NBA | 2,20 mdr | 5% |
| 32 | Indianapolis Colts | NFL | 2,18 mdr | 16% |
| 33 | Atlanta Falcons | NFL | 2,13 mdr | 27% |
| 34 | Oakland Raiders | NFL | 2,10 mdr | 47% |
| 35 | Manchester City | PL | 2,09 mdr | 8% |
| 36 | Los Angeles Chargers | NFL | 2,08 mdr | 36% |
| 37 | Carolina Panthers | NFL | 2,07 mdr | 33% |
| 38 | Arizona Cardinals | NFL | 2,03 mdr | 31% |
| 39 | Tennessee Titans | NFL | 2,00 mdr | 34% |
| 39 | Los Angeles Clippers | NBA | 2,00 mdr | 0% |
| 39 | New York Mets | MLB | 2,00 mdr | 21% |
| 42 | Jacksonville Jaguars | NFL | 1,95 mdr | 32% |
| 43 | Arsenal FC | PL | 1,93 mdr | -4% |
| 44 | Kansas City Chiefs | NFL | 1,88 mdr | 23% |
| 45 | Cleveland Browns | NFL | 1,85 mdr | 23% |
| 46 | Chelsea FC | PL | 1,84 mdr | 11% |
| 47 | Tampa Bay Buccaneers | NFL | 1,80 mdr | 19% |
| 47 | Brooklyn Nets | NBA | 1,80 mdr | 6% |
| 47 | St. Louis Carinals | MLB | 1,80 mdr | 12% |
| 50 | New Orleans Saints | NFL | 1,75 mdr | 16% |
| 50 | Los Angeles Angels | MLB | 1,75 mdr | 31% |
