Gabriel Moreno Forearm Tightness: What D-backs Catching Projections Look Like Without Their Gold Glover

Arizona Diamondbacks catcher Gabriel Moreno was scratched from Friday's spring training game against the Kansas City Royals with right forearm tightness, and while manager Torey Lovullo is downplaying the concern, the data says this is a situation worth monitoring very closely.

Moreno, the 2023 Gold Glove winner, told the team he'd been dealing with the tightness for a few days. Imaging was scheduled for Friday night. Lovullo noted that Moreno "barely" feels it while throwing and doesn't feel it at all while hitting, but for a catcher, "barely feeling it while throwing" is not exactly reassuring when your entire defensive value depends on your arm.

Moreno's Value by the Numbers

Let's quantify what Arizona stands to lose if this forearm issue becomes anything more than a minor spring training hiccup. Moreno posted a 2.8 WAR in 2025 across 119 games, a number that placed him among the top 10 catchers in baseball. His framing metrics were elite, ranking in the 88th percentile in catcher framing runs. Behind the plate, his pop time of 1.87 seconds was consistently among the fastest in the league, and his caught-stealing rate of 34% sat well above the league average of 27%.

At the plate, Moreno slashed .271/.328/.421 with 14 home runs in 2025, good for a 107 wRC+. That's solid production from the catching position, where the league average wRC+ hovers around 85. His contact rate of 84.2% and chase rate of 24.1% reflect an approach that generates consistent offensive contributions from a position where most teams are happy just to get league-average hitting.

The James McCann Contingency

If Moreno were to miss extended time, the bulk of catching duties would fall to James McCann. The 35-year-old veteran brings experience but a significant downgrade in nearly every measurable category.

Metric	Moreno (2025)	McCann (2025)	Difference
wRC+	107	62	-45
Framing Runs	+8.2	-3.1	-11.3
Pop Time (sec)	1.87	2.01	+0.14
CS%	34%	22%	-12%

The framing differential alone is staggering. Over a full season, the gap between Moreno's +8.2 framing runs and McCann's -3.1 translates to roughly 11 additional runs allowed, which in WAR terms is more than a full win of value just from pitch framing. Add in the offensive dropoff of 45 points of wRC+, and you're looking at a potential 2+ WAR swing at a single position.

Durability Has Been the Concern

This isn't Moreno's first brush with health issues. The 26-year-old has struggled to stay on the field consistently over the past two seasons. He missed 43 games in 2024 with a left adductor strain and a thumb contusion, and played through nagging issues for stretches in 2025 that likely suppressed his numbers in the second half.

The forearm is particularly concerning for a catcher. Forearm tightness can indicate anything from simple muscular fatigue to early signs of flexor tendon inflammation, which is the precursor to the kind of elbow issues that have ended catching careers. The fact that Moreno feels it while throwing but not hitting suggests the issue is related to the repetitive stress of throwing, which tracks with typical catcher-specific arm injuries.

Impact on Arizona's 2026 Projections

The Diamondbacks entered spring training with a projected win total of 86.5, positioning them as a fringe contender in the NL West. That projection assumes Moreno plays 130+ games and provides his typical 2.5-3.0 WAR contribution. If he's limited to 90-100 games, the model drops Arizona's projected wins by roughly 1.5-2 games, pushing them further from contention in a division where the Dodgers (98.5 projected wins) are running away with things.

The D-backs' pitching staff also feels the ripple effects. Corbin Burnes and Merrill Kelly both posted career-best walk rates in 2025 with Moreno behind the plate, and that's not a coincidence. Moreno's game-calling and framing made Arizona's pitching staff look better than the sum of its parts. A prolonged absence would test that staff's ability to maintain those numbers with a less capable receiver.

What to Watch For

The imaging results will tell the story. If it's simple muscular tightness, Moreno could be back catching within a week and this becomes a footnote. If there's any structural concern, even something minor like mild inflammation, the Diamondbacks would be smart to manage his workload aggressively early in the season to protect his arm for the stretch run.

For projection models, the key variable is games played. Every 10 games Moreno misses costs Arizona approximately 0.25 WAR in the aggregate, factoring in both the offensive and defensive downgrade to McCann. In a division race that could come down to 2-3 games, that math matters a lot.