The Seattle Mariners have made some significant trades in the past, but one that shocked the baseball world was when they acquired *Luis Castillo* from the Cincinnati Reds in 2022.¹ Castillo was considered one of the top pitchers on the market, and the Mariners beat out several other teams to land him.
In return, the Reds received four players, including three of the Mariners’ top five prospects: *Noelvi Marte*, *Edwin Arroyo*, *Levi Stoudt*, and *Andrew Moore*.
This trade was a bold move by the Mariners, demonstrating their commitment to building a competitive team.
More recently, the Mariners have made other notable trades, such as acquiring *Gregory Santos* from the Chicago White Sox in exchange for two prospects and a draft pick.² They’ve also traded *Paul Sewald* to the Arizona Diamondbacks for *Josh Rojas*, *Dominic Canzone*, and *Ryan Bliss*.³
