The Seattle Mariners bolstered their lineup Monday, acquiring versatile infielder/outfielder Brendan Donovan from the St. Louis Cardinals in a three-team deal that also involved the Tampa Bay Rays.

The Seattle Mariners clearly have a talented major league roster. It just might even be better than most MLB fans realize. MLB.com broke down player projections for the 2026 season, and writer David Adler points out that the Mariners may not have just one of the five best players in baseball. They might have two.

After re-signing Josh Naylor, the Mariners have formed a tremendous trio, having him alongside Cal Raleigh and Julio Rodriguez for a full season of punishing power-hitting

The Seattle Mariners are likely not done making significant moves just yet. So far, the reigning American League West winners have not made a ton of fresh signings. Nevertheless, bringing back Josh Naylor and adding Rob Refsnyder have been important deals for the club.

Several of the Mariners best minor league players have already been in Arizona getting ready early for spring training

After designating Jhonathan Díaz for assignment last week, the Mariners outrighted him to Tacoma on Wednesday.