Yesterday/today was the deadline for teams to add players to their 40-man rosters or risk losing them in the Rule 5 draft. For an explanation of the Rule 5 draft, along with which Mariners prospects are eligible for the draft and who we think will be protected, click here. For an even more detailed explanation of the Rule 5 draft, click here.
The Mariners have made selections in each of the past two Rule 5 drafts: in 2017 they took Mike Ford from the Yankees’ system, but returned him before the 2018 season began (Ford eventually worked his way up to the big-league club this past season and hit .