| 12/31/2016 | ||||||
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| U |
| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Uchiyama, Yasujiro | RF | Westside Road Warriors | 22 | 11/16/1994 | Tanabe | JPN | Left | Left | 6' 0" | 170 lbs | - |
| Umaba, Mitsuhide | SS | Bel Air Princes | 17 | 04/29/1999 | Toyooka | JPN | Right | Right | 5' 11" | 160 lbs | - |
| Umaba, Yasuhiro | SS | Huntsville Sabercats | 18 | 02/23/1998 | Osaka | JPN | Right | Right | 6' 0" | 170 lbs | - |
| Umanzo, Ramón | 2B | Free Agent | 25 | 08/19/1991 | San Diego | USA | Right | Right | 6' 0" | 195 lbs | - |
| Uribe, Pedro | LF | Free Agent | 29 | 10/06/1987 | Santo Domingo | DOM | Right | Right | 6' 0" | 203 lbs | - |
