Diego Castillo is a Dominican professional baseball pitcher for the Seattle Mariners of Major League Baseball.

He previously played in MLB for the Tampa Bay Rays.

Diego is one of the richest professional baseball player and is listed among the most popular professional baseball player.

Diego Castillo signed a 1 year / $2,150,000 contract with the Seattle Mariners, including $2,150,000 guaranteed, and an annual average salary of $2,150,000

In 2022, Castillo will earn a base salary of $2,150,000, while carrying a total salary of $2,150,000.

Castillo signed with the Tampa Bay Rays as an international free agent in March 2014.

He made his professional debut that season with the Dominican Summer League Rays and spent the whole season there, going 3-3 with a 3.96 ERA in 25 innings.

Castillo was promoted to the Tampa Bay Rays and made his debut on June 6, 2018. For the season, he split time between the bullpen and being one of the Rays “opening” starter.