Mariners acquire RHP Alex Hoppe from Boston Red Sox

Published 9:30 am Wednesday, November 19, 2025

SEATTLE — The Seattle Mariners have acquired right-handed pitcher Alex Hoppe from the Boston Red Sox in exchange for minor league catcher Luke Heyman.

Hoppe was selected to the 40-man roster. In a corresponding move, left-handed pitcher Tayler Saucedo was designated for assignment. The moves were announced by Justin Hollander, Mariners vice president of baseball operations.

Seattle’s 40-man roster remains full.

Hoppe, 26, finished the 2025 season with the Triple-A Worcester Red Sox after also spending part of the season with Double-A Portland. In 37 appearances with Worcester, he went 0-2 with a 4.76 ERA with 24 walks and 56 strikeouts in 45 1/3 innings. Across 44 minor league appearances in 2025, Hoppe was 1-3 with a 4.55 ERA with 34 walks and 73 strikeouts.

The 6-foot-1, 200-pound righty has appeared in parts of three minor league seasons in the Red Sox organization (2023-2025), during which he has posted a career 7-13 record and 4.76 ERA (93 ER, 176.0 IP) with 15 saves, 88 walks and 203 strikeouts.

The Davenport, Iowa native was originally drafted by Boston in the 6th round of the 2022 MLB First-Year Player Draft out of the University of North Carolina at Greensboro.

Heyman, 22, was drafted by the Mariners in the 14th round of the 2025 MLB First-Year Player Draft out of the University of Florida (Gainesville, FL). He has yet to make his professional debut.

Saucedo, 32, appeared in 10 games with the Mariners in 2025. He went 0-0 with a 7.43 ERA with 12 strikeouts and six strikeouts in 13 1/3 innings. In 22 games with Triple-A Tacoma in 2025, he was 3-0 with a 2.75 ERA.

The 6-foot-4 lefty has made 115 career appearances over parts of three seasons (2023-25) for Seattle, going 5-2 with 4 saves and a 4.06 ERA with 47 walks and 93 strikeouts in 99 2/3 innings.

Saucedo was originally selected by the Toronto Blue Jays in the 21st round of the 2015 MLB First-Year Player Draft out of Tennessee Wesleyan University. He made his Major League debut with the Jays on June 17, 2021. He was claimed off waivers by the Mets on Nov. 9, 2022, and then claimed off waivers by the Mariners from the Mets on Jan. 31, 2023.

The Hawaii-born hurler grew up in Washington and attended Tahoma High School.

Herald News services contributed to this report.