Are the St. Louis Cardinals’ Middle Infielders the Future?

This piece takes a closer look at the Cardinals’ emerging middle infield. The focus is on Masyn Winn and JJ Wetherholt, and what their development might mean for St. Louis’ plans at shortstop and second base as the club eyes a youth-driven 2026 roster.

Masyn Winn: Defensive anchor with offensive upside

Masyn Winn, who turns 24 this month, is valued first and foremost for his elite defense. He’s ranked second among shortstops behind Bobby Witt Jr. and has produced a .252 batting average, .680 OPS, and 91 wRC+ in roughly 1,200 career plate appearances.

Despite modest offense, he’s racked up an impressive 7.2 fWAR over two full seasons, mostly thanks to his glove. In 2024, Winn had a breakout: 104 wRC+, 15 homers, and 11 stolen bases, hinting at more offensive potential than expected.

The next year, he dipped to a 91 wRC+ with nine homers and nine steals in 129 games. Back and knee issues eventually led to meniscus surgery, which obviously set him back a bit.

Still, his minor-league numbers—multiple seasons with 20+ steals and flashes of real power—make his future hard to ignore. It’s tough not to be a little optimistic about where he’s headed if he stays healthy.

JJ Wetherholt: Ready-made leadoff engine

JJ Wetherholt looks about as major-league ready as you could hope for. He’s likely to step into the leadoff role, thanks to sharp plate discipline and a mix of patience and aggressive baserunning when the moment calls for it.

In spring, his OBP hovered around a wild .579. That’s not a typo—he just seems to know the strike zone inside and out.

Projection systems aren’t in total agreement, but most see him as a net positive. ZiPS projects a line around .254/.324/.398 with 11 homers and 13 steals, good for a 103 wRC+ and about 2.8 fWAR.

Basically, those numbers would let Wetherholt fill Brendan Donovan’s shoes at second base, offering offense and solid work in the field and on the bases.

Depth and roster puzzle: Saggese, Fermin, and the catching tandem

Behind Winn and Wetherholt, the Cardinals have some interesting depth. Thomas Saggese is the better offensive option, while Jose Fermin brings speed and defensive flexibility, both even getting reps in the outfield to add bench value.

The club might also carry three catchers—Ivan Herrera, Pedro Pages, and Yohel Pozo—depending on how they want to use the DH spot. Here are the moving parts to watch:

• Saggese could be the more potent bat off the bench and a possible infield platoon piece
• Fermin offers speed and defensive versatility, with a chance to help on the bases
• All three catchers add depth and some development upside
• DH usage might push the team to carry a third catcher, or maybe not—it’s a balancing act

The long arc: internal options and 2026 expectations

If Winn and Wetherholt really do lock down the middle infield, things get tricky for guys like Nolan Gorman, Alec Burleson, Saggese, and Fermin. Some of them might have to switch positions or even get traded as the young core settles in at shortstop and second base.

Honestly, it’s a pretty crowded pipeline—there’s a ton of talent waiting in the wings. That should speed up St. Louis’ shot at contending, but it also means the front office has some tough choices ahead about who fits where and how to keep the roster balanced.

Looking ahead, 2026 feels like a real chance for this youth-driven roster to make a splash. Wins might not pile up right away, but you can see the foundation shifting toward a homegrown core—Winn and Wetherholt at the center, and plenty of support behind them.

 
Here is the source article for this story: Comparing the Cardinals: Are we seeing the middle infield of the future?