Mariners Designate Jesse Hahn For Assignment

The Mariners announced that they have recalled right-hander Blas Castano to the big leagues, a move that was previously reported. Fellow righty Jesse Hahn has been designated for assignment as the corresponding move. The club’s 40-man roster count drops to 39.

Hahn, 35, seems to be following a similar trajectory to that of teammate Casey Lawrence. He finished the 2024 season on the Mariners’ Triple-A roster alongside Lawrence. Both have re-signed multiple minor league deals with the M’s since the conclusion of the 2024 campaign. Hahn has had two stints in the big leagues this year to Lawrence’s four, but he re-signed with the Mariners after electing free agency on the heels of his most recent DFA and could very well do so again.

Hahn’s five innings with the Mariners this year are his first big league work since a three-inning stint with the 2021 Royals. The right-hander has been beset by injuries throughout his big league career but has fought back onto the MLB periphery in the Pacific Northwest. Hahn has allowed three runs during his brief MLB look with the Mariners and has tossed five shutout innings in Tacoma.

If Hahn proves amenable to a similar setup to that of Lawrence — whom the Mariners outrighted earlier today — he could either accept an outright assignment or elect free agency and re-sign, assuming he clears waivers. Seattle would very likely call him to the majors a few more times this season, affording Hahn big league service time and pay, which clocks in at just under $4200 per day even at the minimum salary. (And, as a veteran with more than six years of service, he could well have a slightly higher base rate of pay in the majors.)

For now, the Mariners can trade Hahn or place him on waivers at any point in the next five days. Waivers are a 48-hour process, so we’ll know the outcome of his latest DFA within a week’s time.