The Seattle Mariners announced Tuesday afternoon that they have designated RHP Casey Legumina for assignment, recalling rookie RHP Alex Hoppe for additional bullpen depth.
The move comes on the heels of a difficult outing for Legumina, but the righty had been reasonably effective in the early stages of the season prior to being tasked with the heart of the lefty-heavy Athletics order in the 8th inning of Monday night’s knotted affair. Asked predominantly for mop-up and low-leverage work, the Gonzaga
product amassed a 5.43/4.15 ERA/FIP in 61.1 innings over the past two seasons with Seattle, a total of -0.9/0.0 bWAR/fWAR. At times, Legumina became the de facto long reliever for the M’s, pitching at least parts of multiple innings in half his appearances in 2026 and more than a handful a season ago. Though the Bean Man could be claimed to fill out another club’s bullpen, it’s plausible he passes through waivers and returns to Triple-A Tacoma for Seattle to call upon again.
His departure gives the Mariners a nearly fully rested bullpen headed into the final two tilts of a 13-game set without off days. The 27 year old Hoppe has yet to make his major league debut, having spent the first few weeks of 2026 with the Rainiers in Tacoma. Even without Legumina’s tough outing a night ago, Hoppe was pushing the M’s to make a move, with eight scoreless outings (well, one unearned run) as Tacoma’s de facto closer, punching out 12 and walking just three while yielding only four hits in 8.0 innings.
Nick Vitalis wrote Hoppe’s 40 in 40, which you can read here for some detail and a spectacular celebrity comp, and Kate should have some more details on Hoppe this afternoon to boot. The short of it is… Hoppe has had command issues, having been a 6th round pick out of UNC Greensboro by the Boston Red Sox in 2022 as a cost-saving senior sign whose expectation was to climb the ranks swiftly. Instead, it’s been a trickier traversal, with three rounds at Double-A Portland from 2023-2025 before cracking Triple-A Worcester last year.
As you can see from the clip below, Hoppe eschews some recent trends in pitch design and development. He’s “just” 6’1, but creates a steeper angle with a rather over-the-top delivery that makes his heater and breaking ball appear to tunnel well.
These pitches also make it difficult for hitters to elevate, as Hoppe has run high groundball rates for much of his career and has continued to do so in his short time this season. If and when he pitches for Seattle, he’ll be the first Mariners player to make their MLB debut in 2026.
