Tuesday was the deadline for the Seattle Mariners to set their 40-man roster ahead of the upcoming Rule 5 Draft, and they opened the door for a few of their top-30 prospects to be stolen away from them.
Six of the team's top-30 prospects were left off the 40-man and are eligible for the Rule 5 Draft. For reference, not all prospects are Rule-5 eligible, only those who have been in the same organization for five years or four years, depending on what age they were signed.
There are six prospects within the Mariners' top 30 for MLB Pipeline who fit the requirements, and who are now eligible to be drafted by other teams on December 10: pitcher Michael Morales (No.