Arizona Diamondbacks 2026 Non-Roster Invitees: Unveiling the Depth Chart
The Diamondbacks have been busy adding depth to their roster, and it's time to dive into the non-roster invitees for the 2026 season. Let's explore some of the players who are on the cusp of making an impact, even if they don't make the final cut.
Pitching Depth: Joe Ross and the Comeback Trail
Joe Ross, a right-handed pitcher, is a familiar face in the MLB. He was drafted by the Padres in the first round back in 2011 and has over 500 innings under his belt across eight seasons. Ross even has a World Series ring from his time with the Nationals in 2019. However, his recent performances with the Phillies last year (37 appearances, 5.12 ERA, 39:18 K:BB in 51 innings) weren't exactly stellar. Ross, who has battled injuries, including Tommy John surgeries, might find himself in a depth role in Reno unless he turns heads during Spring Training. The team's focus on pitching depth is evident, and Ross could be a key player in that quest.
Outfield Depth: Oscar Mercado's Struggles and Potential
Oscar Mercado, a Venezuelan-born player, made his MLB debut with the Indians in 2019, showcasing solid performance. However, since then, he's struggled to maintain a consistent presence in the majors. Last year, Mercado played in Triple-A with the Phillies, batting .249/.369/.373 for a .741 OPS across 115 games. With the 40-man roster lacking outfielders, Mercado's skills could be valuable, even if he doesn't crack the final roster.
Catching Depth: Aramis Garcia, Gavin Logan, and the Emergency Plan
Aramis Garcia, who had a brief appearance with the Diamondbacks last year, is a familiar name. He was selected, made a single appearance, and then designated for assignment twice in June. The team opted for James McCann as a better backup, keeping Garcia in Triple-A. Despite this, Garcia remained a regular catcher for the Reno Aces, appearing in 56 games. With a re-signing in November, Garcia will likely continue as an emergency catcher in Reno, ready to step in if needed.
Gavin Logan, a Canadian catcher, made waves in 2025 with his frequent level changes. He bypassed Double-A, jumping straight to Triple-A twice, before ending the season in Amarillo. Logan, who turned 26 last month, posted a .754 OPS and hit eight home runs in 65 games. Starting the year in Amarillo is likely, but the goal is to secure a more permanent promotion by season's end.
Matt O'Neill, a 2019 Mets draft pick, is also making his first foray outside the Mets organization. Last year, he split time between Double-A and Triple-A, posting an impressive .231/.335/.343 line for an OPS of .678. With Adrian Del Castillo's calf injury potentially ruling him out for Opening Day, O'Neill's depth role becomes even more crucial. The Diamondbacks are taking no chances when it comes to their catching depth.
The Diamondbacks' non-roster invitees showcase a commitment to building a strong foundation. These players, though not guaranteed a spot on the final roster, bring valuable skills and potential to the team. As the season unfolds, fans can expect to see these players making their mark, whether it's in the minors or as key contributors to the major league team.
