Adding Donovan solidifies an infield mix that was shaky for the Mariners after the free agency departure of Jorge Polanco, with a trio of youngsters in Cole Young, Ben Williamson, and Colt Emerson in the mix but question marks hanging over each.

According to multiple MLB sources, including The Athletic’s Katie Woo, the Seattle Mariners are close to finalizing a trade for St. Louis Cardinals All-Star infielder Brendan Donovan. Donovan has been sought after by multiple teams this offseason,

But also, the additions we may make will be very mindful of the defensive skills too." Suárez was in the eighth percentile in outs above average in 2025 with -6. In comparison, Rafael Devers had -6 outs above average in 2024 before the team turned to Alex Bregman.