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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Ueda, Kazunari | 2B | Westside Road Warriors | 24 | 07/29/1991 | Nagoya | JPN | Right | Right | 6' 0" | 190 lbs | - |
| Uemura, Shozo | SP | Barrow Frosties | 20 | 07/02/1995 | Nisshin | JPN | Right | Right | 6' 5" | 215 lbs | - |
| Ueno, Yoshiaga | SP | Cherry Hill Stealers | 22 | 09/24/1993 | Chiyoda | JPN | Right | Right | 6' 0" | 205 lbs | - |
| Uenohara, Ryushi | RF | Free Agent | 32 | 08/04/1983 | Higashiosaka | JPN | Left | Left | 6' 2" | 192 lbs | - |
| Uin, Peng | CF | Roman Fascists | 27 | 06/04/1988 | Winnipeg | CAN | Switch | Right | 6' 0" | 175 lbs | - |
| Umaba, Sumitomo | SS | Free Agent | 20 | 03/14/1995 | Yamaga | JPN | Right | Right | 6' 2" | 220 lbs | - |
| Umanzo, Ramón | 2B | Free Agent | 24 | 08/19/1991 | San Diego | USA | Right | Right | 6' 0" | 195 lbs | - |
| Uribe, Pedro | LF | Free Agent | 28 | 10/06/1987 | Santo Domingo | DOM | Right | Right | 6' 0" | 205 lbs | - |
