The Mariners announced they’ve designated reliever Jackson Kowar for assignment. That opens a 40-man roster spot for catcher Jhonny Pereda, whom they acquired from the Twins in exchange for cash considerations. Minnesota had designated Pereda for assignment last week when they signed free agent catcher Victor Caratini to a two-year contract.
Kowar is a former supplemental first-round pick of the Royals. He allowed 79 runs in 74 innings over parts of three seasons with Kansas City. They swapped him to the Braves for injured starter Kyle Wright over the 2022-23 offseason. Kowar’s time with the organization lasted less than a month, as the Braves flipped him to Seattle as part of the multi-player deal that sent Jarred Kelenic to Atlanta.
It was a change-of-scenery sequences involving a number of former high draft picks, but none of the players involved performed as hoped with their new clubs. Kowar blew out during his first Spring Training as a member of the Mariners. He underwent Tommy John surgery and was out of action until May ’25. He was on and off the active roster for the next few months until suffering a season-ending shoulder impingement in August.
Kowar has ultimately made just 15 appearances in a Seattle uniform. He allowed eight runs over 17 innings, walking seven while recording 15 strikeouts. The Florida product gave up nine runs (five earned) across 16 Triple-A innings. He has an 8.21 earned run average with a 20.3% strikeout rate and elevated 13.1% walk percentage across 91 MLB innings.
More to come.
