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 Mariners reliever Trent Thornton will miss the remainder of the season with a torn left Achilles. The team placed him on the 15-day injured list Friday, a day after he was hurt while coming off the mound on a ground ball in the ninth inning of a 6-0 win over the Texas Rangers.

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.