| 12/31/2018 | ||||||
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|  |
| Saturday, October 27th, 2018 |
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| BC Lou Milligan retires. |
| Wednesday, June 13th, 2018 |
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| Released SP George Parker. |
| Released 3B King Wimbush. |
| Released C Gabriel Ramírez. |
| Released LF Gary Warren. |
| Released CF Ricardo Diharce. |
| Released 2B Tony Rivera. |
| Fired general manager Bryan Ray. |
| Fired manager António Guzmán. |
| Hitting Coach Joseph Trent leaves the team, his contract was not renewed. |
| Signed Team Trainer Ed Rodríguez to a 1-year contract extension. |
| C Ricardo Valdés joins the team. |
| LF Glenn McBride joins the team. |
| SP Luis Trevino joins the team. |
| SP Rodrigo Pérez joins the team. |
| 2B Edward Ferguson joins the team. |
| LF Haden Taylor joins the team. |
| SP Craig Rogers joins the team. |
| SS Andrew Hamilton joins the team. |
| SP Javier Toledo joins the team. |
