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Mariners Acquire Alex Hoppe From Red Sox, Send Catcher Luke Heyman

The swap centered on 40-man protection before the Rule 5 Draft.

Overview

  • Seattle added right-hander Alex Hoppe to its 40-man roster, securing Rule 5 Draft protection.
  • Boston received 22-year-old catcher Luke Heyman, a 2025 14th-round pick from Florida viewed as a developmental prospect.
  • To open a roster spot for Hoppe, the Mariners designated left-hander Tayler Saucedo for assignment, according to Lookout Landing.
  • Hoppe, a 2022 sixth-round pick out of UNC-Greensboro, logged a 4.55 ERA with 73 strikeouts over 61.1 innings across Double-A and Triple-A in 2025.
  • Per Lookout Landing, Hoppe’s fastball sits high-90s with touches of 101 mph, his control remains a concern, and he has three minor-league option years.