The Seattle Mariners placed right-handed reliever Trent Thornton on the 15-day injured list with a torn left Achilles tendon, which will end his season.

Trent Thornton's fears for the worse were realized after undergoing an MRI on Friday afternoon that revealed that he did indeed tear his left Achilles late in the Mariners’ 6-0 win the night prior. “I

Seattle confirmed the injury was a torn left achilles tendon and placed him on the 15-day injured list Friday. The club recalled right-handed reliever Jackson Kowar from the Triple-A Tacoma Rainiers in a corresponding move. Thornton was acquired by the Mariners back in 2023 and has been one of the most dependable bullpen arms for the team since.