Non-Roster Spring Training Invitees Poised to Reshape Triple-A Rosters

Konnor Griffin is the marquee name on this year’s non‑roster invitee list. The 2024 first‑rounder compiled a .333/.415/.527 slash line with 21 homers and 65 steals in his pro debut and arrives to big‑league camp as a non‑roster invitee with one of the most consequential spring storylines: whether he can make the Opening Day roster in Pittsburgh and displace Triple‑A regulars who would otherwise hold everyday jobs.

Detroit’s camp arrives loaded with position‑player prospects who can redraw Triple‑A depth charts. Kevin McGonigle enters spring as the sport’s No. 2 prospect after being taken No. 37 out of high school in 2023; he posted a Double‑A OPS of .919 at age 20 but has not reached Triple‑A yet, and if he performs this spring he could force his way onto Detroit’s Opening Day roster. Max Clark, the 2023 No. 3 overall pick, is also in camp, Clark is a talented hitter and 65‑grade runner who covers the entire outfield well but struggles to get the ball in the air at times. Detroit’s non‑roster invitees include McGonigle, Max Anderson (2B), Max Clark (OF) and Josue Briceño (C/1B).

Milwaukee’s invites spotlight speed and recent power gains that will ripple through Triple‑A rosters. Jesús Made reached Double‑A as an 18‑year‑old to finish 2025 and produced a .285/.379/.413 line with 47 stolen bases. Jett Williams, 22, joined Milwaukee in the Freddy Peralta trade and hit 17 homers between Double‑A and Triple‑A in 2025; he may benefit from an expanded path after the club parted with Caleb Durbin. Brewers non‑roster invitees listed for spring include Jett Williams, Cooper Pratt, Luis Lara, Brock Wilken, Jesús Made and Luke Adams.

San Diego’s camp centers on a recovery narrative that could reshuffle Triple‑A catching depth. Ethan Salas once ranked among the game’s top prospects, played only 10 games in 2025 due to injury and slipped to No. 90; "this is a pivotal season for the talented backstop to reestablish his trajectory as one of the game’s elite young players." San Diego’s non‑roster invitees include Romeo Sanabria, Ethan Salas, Francis Peña and Jagger Haynes, while 2025 first‑rounder Kruz Schoolcraft, a No. 88 Top‑100 prospect and 18‑year‑old southpaw, did not receive a big‑league camp invite after one Single‑A start last year.

Seattle’s wave of invites will test Triple‑A openings in the system. Colt Emerson, 20, "played his way to Triple‑A last season and saved his best for the Minors’ highest level," and he joins Lazaro Montes, who clubbed 32 homers in 2025 (third‑best in the Minors) en route to Double‑A. Emerson and Arroyo seem to have the best shots at competing for Opening Day spots, while Farmelo has seen limited time because of injuries but has flashed.

The list of non‑roster names with immediate Triple‑A implications continues across the sport. Pirates rotation depth is affected by Bubba Chandler and Hunter Barco combining for nine major league appearances (four starts) last year, with Chandler a solid favorite to begin the year in Pittsburgh. Bryce Eldridge, a 6‑foot‑7 first baseman, debuted in the majors at 20 and posted a .476 OPS in a brief cameo while remaining on the 40‑man roster. Mets outfielder Carson Benge, the No. 19 pick in 2024, posted a .897 High‑A OPS and a .978 Double‑A OPS in 2025 but a .583 Triple‑A OPS, and he enters camp with a real chance to lock down right field.

These invite lists are not ceremonial. Between Griffin’s 65 steals, Made’s 47 steals, Montes’ 32 homers and McGonigle’s .919 Double‑A OPS at 20, spring performances will determine who jumps to major league jobs and which Triple‑A rosters are left scrambling for replacements. Watch camp box scores for the early moves that will redraw Triple‑A lineups before Opening Day.