Seattle Mariners

The Mariners are not expected to trade Luis Castillo. (Source: Adam Jude on Twitter)

Fantasy Impact: Castillo has found his name in the middle of trade rumors over the past couple of seasons. He is coming off another steady year, posting a 3.54 ERA over 32 starts. He has remained the workhorse in the Mariners starting rotation. There have continued to be rumors of Seattle possibly trading a pitcher for a bat each of the past couple of seasons.

The Nationals acquired RHP Isaac Lyon and C Harry Ford from the Mariners for LHP Jose Ferrer. (Source: Jeff Passan on Twitter)

Fantasy Impact: Lyon was a 10th round selection by the Mariners from the 2025 draft. He'll enter next season in the lower levels of the Nationals organization.