What happened: Moreno, 26, has drawn 49 walks against 65 strikeouts. He has shown the ability to hit to all fields.
Why it matters: His production gives Arizona an above-average bat at catcher during the stretch run. The plate discipline reduces his reliance on batting average to create offense.
By the numbers: His on-base percentage is 79 points above his batting average, while his walk-to-strikeout ratio is 0.75. The slash line yields an .846 OPS.
What to watch: Watch whether Moreno sustains that walk-to-strikeout balance through the final month.