Nolan Arenado is enjoying a strong resurgence with the Arizona Diamondbacks, and his early production is beginning to make the St. Louis Cardinals reconsider their offseason decision.

Arizona acquired Arenado from St. Louis during the offseason in exchange for pitching prospect Jack Martinez in a move widely viewed as a salary-clearing deal for a Cardinals organization expected to enter a rebuilding phase in 2026.

Arenado’s turnaround has quickly shifted attention back toward the trade itself. Through 46 games, Arenado has posted a .273 batting average with seven home runs and 25 RBIs while already accumulating 1.6 Baseball Reference WAR across 154 at-bats.

For comparison, Arenado finished the entire 2025 season with just 1.3 WAR.

Although his defense has declined somewhat compared to earlier stages of his career, his offensive production has rebounded significantly. He currently owns an .816 OPS and a 128 OPS+, both representing his strongest marks since his third-place MVP finish in 2022.

The 35-year-old has been especially productive over the past month, emerging as one of the hottest hitters in baseball and giving Arizona a major boost offensively.

According to Nick Piecoro of The Arizona Republic, during a preseason press conference in January, Arenado told reporters that joining Arizona gave him renewed energy and excitement entering a new chapter of his career.

“When you have a new chapter in front of you, it kind of gives you a little bit of energy. And I feel that again. And I feel really anxious to get going in Arizona and get ready to play,” Arenado said.

That fresh environment appears to be paying off early in the season.

While some of Arenado’s underlying metrics remain relatively average, Arizona’s hitter-friendly conditions have clearly helped him regain offensive rhythm after several uneven seasons in St. Louis.

More importantly for the Diamondbacks, Arenado has become a reliable middle-of-the-order presence at a time when parts of the lineup have struggled for consistency.

Arizona currently sits at 26-23, 4 1/2 games out of first place in a difficult National League West Division that includes both the Los Angeles Dodgers and San Diego Padres.

The Diamondbacks have gained momentum, winning five straight games as of Friday, though questions remain about whether they can sustain a legitimate postseason push throughout the summer.

If Arizona eventually falls out of contention, then Arenado’s strong rebound season could create additional flexibility for the front office near the trade deadline.

A productive veteran with postseason experience would likely generate interest from contenders, potentially allowing the Diamondbacks to recover future value if they decide to move him later in the year.

For now, however, Arenado’s resurgence has become one of the organization’s biggest early-season success stories. It is an increasingly uncomfortable reminder for the Cardinals of the player they moved away from just months ago.

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