The Seattle Mariners made a major move to kick off the 2026 season by acquiring All-Star infielder/outfielder Brendan Donovan from the St. Louis Cardinals as part of a three-team trade that also involved the Tampa Bay Rays, according to team sources.
Donovan, 29, arrives in Seattle after an impressive 2025 season in which he hit .287 with 10 home runs and 50 RBIs, while showcasing his defensive versatility across multiple positions. His addition strengthens a Mariners lineup that already features star players such as Julio Rodríguez, Cal Raleigh, and Randy Arozarena.
To complete the deal, Seattle sent third baseman Ben Williamson to the Rays, while prospects m and Tai Peete were sent to the Cardinals, who bolster their farm system with young talent and draft assets.
This move highlights the Mariners’ intention to remain competitive at the highest level after coming close to their first World Series appearance in 2025, reinforcing their roster with a proven and versatile Major League player (MLB).
How does Donovan fit with the Mariners?
He can play both in the infield and the outfield, giving the team flexibility and an offensive boost.