Pitchers and catchers may not have reported yet, but I figured I need to get an early jump on our usual review of the non-roster invitees to spring training. That’s because there are an awful lot of them this season. The team announced the list on Friday, and there are thirty-two non-roster invitees, in addition to a full 40-man roster. I hope the locker room at Salt River Fields is big enough for everyone. As noted there, that compares to the fewer than twenty present last year – and there may still
be some further additions to come, if the rumblings out of the front-office are to be believed.
These players may not be on the 40-man roster yet. But they still “matter”. Of those nineteen NRI in camp last year, over half ended up appearing in the big leagues. Five were pitchers (Kyle Backhus, Jeff Brigham, José Castillo, Christian Montes De Oca, Juan Morillo) and another five were position players (Tristin English, Aramis Garcia, Garrett Hampson, Connor Kaiser and Ildemaro Vargas). Garcia and Vargas are back in the same situation this spring. Should Vargas appear for the D-backs in 2026, it will be his seventh season doing so. That would be more than franchise cornerstones like Justin Upton, Steve Finley and Gerardo Parra.
But let’s begin our review – which will likely take much of the month to complete! – with the left-handed pitchers who will be reporting to Salt River Fields next week.
Spencer Giesting (70)
An 11th-round pick in 2022, out of the University of North Carolina, Giesting split time in 2025 between Double-A Amarillo and Triple-A Reno. His numbers at the former stop were excellent, especially considering its status as the most hitter-friendly park in the minors: a 3.67 ERA, compared to a team figure a hair below five. Spencer did struggle after moving to the (relatively pitcher-friendly!) Aces, with a 6.47 ERA across seventeen starts. But he was more than four years younger than average for that level. Giesting also finished strongly, with a 3.14 ERA over his final five starts, and being named the team’s minor-league pitcher of the month for September.
Tommy Henry (47)
This is obviously a name you should recognize, since at one point Henry (pictured top) looked set to become a regular member of the big-league rotation. He made sixteen starts in 2023, and had a 4.15 ERA when elbow inflammation ended his season in July. Sadly, Tommy hasn’t been the same since. His ERA ballooned to over seven in 2024, and he barely got a cup of coffee last year, making just two appearances before that elbow required Tommy John surgery in June. Henry was designated for assignment in November, but re-signed to a minor-league contract the following month. He obviously won’t be doing much in camp, since he is still recovering from that surgery.
Yu-Min Lin (89)
It kinda feels like we’ve been taking about Lin for a while, but he only signed with the D-backs in 2022. Hopefully, he will arrive on time this year: he was late to spring training in 2025 due to obligatory military service back in his home country of Taiwan. He made 23 starts for Reno, and labored a bit, with an ERA of 6.64. But he only turned 22 in July, so like Giesting, is very young for Triple-A. One three-game stretch, where he allowed 18 ER over 6.1 innings, was definitely a factor; he then rebounded with three ER over 17 innings. Yu-Min should start in Reno again, but I would not be surprised if he were to reach the major leagues this season.
