#2. RF Mike Yastrzemski - .238/.312/.430
Yastrzemski has been a consistently valuable bat for the San Francisco Giants since his debut in 2019. He'll likely never be the best hitter on any team, but he might manage to be the best hitter on the 2024 Mariners. His 114 OPS+ and average defense in right field could be a big upgrade over Mitch Haniger. Yastrzemski is more or less a typical major-league bat with a slightly more pop but with valuable outfielders from probable sellers hard to find, he just might be a hidden gem.
Yastrzemski will be in his final year of arbitration before hitting free agency in 2026 and so far, there doesn't seem to be a lot of discussion about him as a trade target. San Francisco will almost definitely retain Heliot Ramos given his service team and performance this year but Yastrzemski is the second-best outfielder on the team and could be a far more accessible upgrade.