The Mariners' 2026 Spring Training has highlighted several promising prospects, including Emerson, Anderson, and Brendan Donovan. Bryce Miller is expected to open the season on the injured list, but is progressing well and is being targeted for a possible return in April. Meanwhile, J.P. Crawford may not be ready for Opening Day due to a sore throwing shoulder. Young has been the team's most impressive player this spring, leading with six home runs.