Welcome to On The Verge, our fantasy baseball series dedicated entirely to the minor leaguers who are actively pounding on the door of a Major League callup. In this series, we cut through the superficial hype to identify the prospects whose arrival in the big leagues is truly imminent, tracking critical 40-man roster logistics, defensive vacancies, and changing front-office timelines. By blending the latest narrative developments with advanced analytical data, we give fantasy managers the definitive edge to stash impact talent weeks before the rest of your league even sees the news break.

Joshua Baez makes a huge statement to the Cardinals brass

There is loud tool power, there is light-tower power, and then there is whatever Báez just did to a baseball on Tuesday night.

If the St. Louis Cardinals front office was looking for an undeniable sign that their number three prospect has nothing left to learn in the minor leagues, the 22-year-old outfielder didn’t just knock on the door—he blew it completely off its hinges.

Playing for Triple-A Memphis on Tuesday, June 16, Báez put together a historic, legendary performance: four home runs in a single game.

Four swings. Four absolute missiles. The baseball world has spent the night refreshing Statcast data in pure awe. With the Cardinals big league club desperately starved for game-changing athleticism and raw thumping power in the middle of their order, Báez has officially graduated from a logical “stash” to an absolute mandatory roster addition.

The performance: 4-for-5, 4 HRs, 7 RBIs

Báez’s four-homer onslaught wasn’t a product of windy conditions or cheap ballpark dimensions. It was a pure showcase of the top-percentile exit velocity that has made him a darling of analytical departments all season.

He started his evening by obliterating a 1-2 slider to deep left in the first inning. He followed that up in the third inning by smashing a 2-2 high fastball to center and crushing a 2-0 slider down the left-field line in the fifth inning. After proving he was human by grounding to end the sixth inning, he hit a 3-2 pitch for a moon shot on a 99-mph fastball in the eighth inning.

A look at the home run stats:

  • 1st inning: 108.2 MPH, 20 LA, 375 ft.
  • 3rd inning: 101.6 MPH, 33 LA, 408 ft.
  • 5th inning: 108.4 MPH, 21 LA, 373 ft.
  • 8th inning: 103.9 MPH, 49 LA, 354 ft.

With that jaw-dropping display, Báez surged past the 20-home run mark on the season, vaulting into the solo leadership position for all of Triple-A. The performance serves as the definitive exclamation point on a summer stretch that has seen him completely dominate the International League.

The analytical case: Elite tools are on full display

For all the narrative hype surrounding a four-homer game, the underlying metrics are what tell us Báez is ready to impact major league scoreboards. He isn’t just getting lucky; he is hitting the ball harder than almost anyone in professional baseball.

The power blueprint: Báez has been an exit velocity kingpin all year, accounting for half of Memphis’ 14 hardest-hit balls this season. His average exit velocity sits in the elite tier, and his ability to consistently find the barrel has unlocked true 35+ home run upside.

The June heatwave: Entering tonight’s game, Báez was already locked in this month, hitting .370 with five doubles and three home runs through 11 games. Tuesday’s nuclear performance pushes his seasonal slugging percentage well past the .600 mark.

Five-category upside: Do not mistake his 6-foot-3, 220-pound frame for a lumbering slugger. Báez possesses a blazing 29.5 ft/sec sprint speed—a mark bested by only Victor Scott II and Jordan Walker in the entire Cardinals organization. He already has 12 stolen bases this season, coming off a 2025 campaign where he swiped 54 bags across High-A and Double-A.

The fantasy baseball reality check: The strikeout tax

As fantasy analysts, we have to remain objective. Báez does not possess the pristine plate discipline of a Luis Lara.

His strikeout rate hovers right around 31.5%, a double-digit jump from his 2025 metrics. He runs an aggressive, two-true-outcome approach (mash or miss) that will inevitably lead to some baseline batting average volatility at the next level.

In standard batting average leagues, understand that he might hit for a lower average out of the gate. However, in modern dynasty leagues tracking OBP/SLG, his high walk rate combined with elite extra-base damage completely mitigates the swing-and-miss risk.

The fantasy baseball verdict: The stash order is urgent

The Cardinals rank right in the middle of the pack in the National League in total home runs and overall OPS. They are firmly in the wild card hunt and desperately need an offensive jolt.

Báez is already occupying a spot on the 40-man roster, meaning the Cardinals don’t have to cut anyone or pull off financial gymnastics to bring him to St. Louis. He can play all three outfield spots and brings a dynamic power-speed element that changes the entire geometry of a lineup.

If you are looking for a true lottery ticket capable of single-handedly carrying your fantasy power categories through July and August, the search ends tonight. Go get Baez before tomorrow’s morning waiver wire run. The countdown has expired.