As well as making the Lourdes Gurriel Jr. signing official, the Arizona Diamondbacks announced that they have designated INF Diego Castillo for assignment.
The #Dbacks agreed to terms with OF Lourdes Gurriel Jr. on a 3-year contract with a club option for the fourth year.
In a corresponding move, INF Diego Castillo was designated for assignment.
— Arizona Diamondbacks (@Dbacks) December 22, 2023
Castillo played with the Reno Aces last season. During his time in triple-A, he posted an impressive .