USA
Formed: 1913 Manager: Bob Bradley
| Number | Name | Pos | Height | Weight | Date of Birth | Birth Place | Current Club |
| 1 | |||||||
| 2 | Marvell Wynne | D | 5'09" | 12 03 | 08-05-86 | Pittsburgh | Toronto FC |
| 3 | Jay DeMerit | D | 5'11" | 12 12 | 25-01-80 | Green Bay | Watford |
| 4 | Bobby Boswell | D | 6'02" | 13 03 | 15-03-83 | Tampa | DC United |
| 5 | Benny Feilhaber | M | 5'09" | 10 10 | 19-01-85 | Rio de Janeiro | Hamburg |
| 6 | Heath Pearce | D | 5'11" | 12 06 | 13-08-84 | Modesto | FC Nordsjælland |
| 7 | Danny Califf | D | 6'01'' | 12 07 | 17-03-80 | Montclair | Aalborg |
| 8 | Herculez Gomez | F | 5'10" | 10 05 | 06-04-82 | Las Vegas | Colorado Rapids |
| 9 | Eddie Johnson | F | 6'00'' | 12 12 | 31-03-84 | Daytona Beach | Kansas City Wizards |
| 10 | Charlie Davies | F | 5'10" | 11 06 | 25-06-86 | Manchester, NH | Hammarby IF |
| 11 | Eddie Gaven | M | 6'00'' | 10 05 | 25-10-86 | Hamilton, NJ | Columbus Crew |
| 12 | Jimmy Conrad | D | 6'02'' | 13 03 | 12-02-77 | Temple City | Kansas City Wizards |
| 13 | Jonathan Bornstein | D | 5'09" | 10 05 | 07-11-84 | Torrance | Chivas USA |
| 14 | Ben Olsen | M | 5'08'' | 11 02 | 03-05-77 | Harrisburg | DC United |
| 15 | Drew Moor | D | 6'00" | 12 02 | 15-01-84 | Dallas | FC Dallas |
| 16 | Sacha Kljestan | M | 6'01" | 10 10 | 09-09-85 | Huntington Beach | Chivas USA |
| 17 | Kyle Beckerman | M | 5'10'' | 11 01 | 23-04-82 | Crofton | Colorado Rapids |
| 18 | Kasey Keller | G | 6'02'' | 13 12 | 27-11-69 | Washington | B Mönchengladbach |
| 19 | Ricardo Clark | M | 5'10'' | 10 10 | 10-02-83 | Atlanta | Houston Dynamo |
| 20 | Taylor Twellman | F | 5'11'' | 12 02 | 29-02-80 | St Louis | New England Revolution |
| 21 | Justin Mapp | M | 5'10'' | 10 00 | 18-10-84 | Brandon | Chicago Fire |
| 22 | |||||||
| 23 | Brad Guzan | G | 6'04" | 15 00 | 09-09-84 | Home Glen | Chivas USA |
| 24 | |||||||
| 25 | Lee Nguyen | M | 5'08" | 10 10 | 07-10-86 | Richardson | PSV Eindhoven |