The Tigers announced Friday that they’ve claimed lefty Tyler Holton off waivers from the Diamondbacks, who’d designated him for assignment earlier in the week. In order to open a spot on the 40-man roster, Detroit transferred right-hander Casey Mize to the 60-day injured list. Mize underwent Tommy John surgery and back surgery last year and wasn’t expected to be ready within the season’s first two months anyhow, so his eventual placement on the 60-day IL was a foregone conclusion.
The 26-year-old Holton made his MLB debut in 2022, pitching nine innings and allowing three runs on right hits and a pair of walks with six strikeouts during that brief cup of coffee. The rest of his season was spent in Triple-A Reno, where he logged a 4.43 ERA in 44 2/3 innings, fanning 23.5% of his opponents against a 9.3% walk rate.
It was a rebound effort for Holton, who’d previously limped to a 6.72 ERA between Double-A and Triple-A in 2021. Even amid those struggles, he notched a strong 26.5% strikeout rate, however, and his 6.5% walk rate was similarly encouraging. Solid strikeout, walk and ground-ball rates have been the norm for Holton since being selected in the ninth round of the 2018 draft. He doesn’t throw hard and has never ranked among the D-backs’ best prospects, but his track record of performance, MLB readiness and pair of remaining minor league option years all surely held appeal to the Tigers.
Prior to claiming Holton, the only left-handed bullpen option on the 40-man roster had been Tyler Alexander (assuming the club wants to keep Joey Wentz in a starting role). Non-roster veterans Chasen Shreve, Jace Fry and Miguel Del Pozo will all be in camp competing for a job as well. Holton will have a chance to land an Opening Day roster spot, though the Tigers can freely option him to Triple-A Toledo if one of the non-roster options outperforms him (or, if the team simply opts to carry one left-hander to begin the season). Wherever he starts the year, Holton figures to log some action in the big league bullpen in 2023, given the lack of certainty that permeates the Detroit bullpen following offseason trades of Gregory Soto and Joe Jimenez.
As for Mize, he underwent Tommy John surgery last June, so he’s unlikely to be an option until the season’s second half. The Tigers only recently revealed that Mize also underwent back surgery around that same time, however. Mize told reporters about the procedure earlier this week, explaining that his back issues have been slowly escalating over the past several years. Knowing he’d be off the mound for a year-plus anyhow, he opted for surgery aimed at alleviating the issue so he could truly be at full strength once he returns to the mound later this year.