Players
| # | POS | Player Name | Club | Age | HT | WT | Birthplace | Status | |
|---|---|---|---|---|---|---|---|---|---|
| 4 | M | Andrew Jacobson | FC Dallas | 27 | 6' 2" | 185 | USA | Active |
|
| 14 | F | Adam Jahn | San Jose Earthquakes | 22 | 6' 3" | 185 | USA | Active |
|
| 5 | D | Dejan Jakovic | D.C. United | 27 | 6' 2" | 186 | Croatia | Active |
|
| 26 | D | Julius James | 28 | 6' | 180 | Trinidad & Tobago | Active |
|
|
| 36 | M | Evan James | 22 | 5' 11" | 161 | Canada | Active |
|
|
| 13 | D | Ante Jazic | Chivas USA | 37 | 5' 11" | 175 | Canada | Active |
|
| 35 | D | Andrew Jean-Baptiste | Portland Timbers | 20 | 6' 2" | 205 | USA | Active |
|
| 24 | D | Mechack Jerome | Sporting Kansas City | 23 | 5' 10" | 165 | Haiti | Active | |
| 13 | M | Jack Jewsbury | Portland Timbers | 32 | 6' | 185 | USA | Active |
|
| 16 | M | Hector Jimenez | LA Galaxy | 24 | 5' 9" | 140 | USA | Active |
|
| 5 | D | Adam Johansson | Seattle Sounders FC | 30 | 5' 11" | 165 | Sweden | Active |
|
| 14 | D | George John | FC Dallas | 26 | 6' 3" | 200 | USA | Active |
|
| 7 | F | Eddie Johnson | Seattle Sounders FC | 29 | 6' | 180 | USA | Active |
|
| 9 | F/M | Ryan Johnson | Portland Timbers | 28 | 6' 1" | 180 | Jamaica | Active | |
| 4 | M | Will Johnson | Portland Timbers | 26 | 5' 10" | 160 | Canada | Active |
|
| 25 | GK | Sean Johnson | Chicago Fire | 23 | 6' 3" | 217 | USA | Active |
|
| 14 | F | Jason Johnson | Houston Dynamo | 22 | 6' | 180 | Jamaica | Active | |
| 21 | M | Shalrie Joseph | Seattle Sounders FC | 35 | 6' 3" | 180 | Grenada | Active |
|
| 19 | M | Peterson Joseph | Sporting Kansas City | 23 | 5' 8" | 132 | Haiti | Active |
|
| 99 | D | Hunter Jumper | Chicago Fire | 24 | 6' 2" | 173 | USA | Active |
|
| 19 | M | Juninho | LA Galaxy | 24 | 5' 7" | 140 | Brazil | Active |
|
| 8 | M | Juninho | New York Red Bulls | 38 | 5' 10" | 156 | Brazil | Active |