Joshua Báez writes the record book as Cardinals rookie homers in his first three MLB at-bats

The Cardinals’ Joshua Báez did not ease into the majors. On Saturday at Wrigley Field, the St. Louis rookie capped each of his first three at-bats with home runs, a feat that made him the first player in MLB history to accomplish three homers in his first three big-league at-bats. For a player arriving on a fresh major league stage, it is the kind of start that turns a debut into a headline and a storyline into a measuring stick.

Báez’s opening homer came early in the moment and immediately demonstrated the power profile the Cardinals had been tracking at the minor-league level. CBS Sports reported that his first home run was a 449-foot drive to center field, hit on the very pitch he saw in the majors. That length matters because it is not just contact or volume hitting, it is the kind of carry that changes how an opposing pitcher thinks on every subsequent pitch.

The debut also carried a historical edge that goes beyond the distance of a single swing. By homering in each of his first three at-bats, Báez joined a category that does not exist in the major league record book. Even casual followers understand what this implies: the margin for error during an MLB debut is thin, and Báez’s early production suggests the ball was not merely finding a gap, it was clearing the field consistently.

Before his call-up, Báez had been a power-driving presence in the minors, leading the organization’s minor-league output in home runs as part of his path to the majors. That context is important, because a player’s first month in the big leagues often reflects whether their skills translate beyond a familiar minor-league routine. In Báez’s case, the first three at-bats provided an instant translation check.

Wrigley Field added a second layer to the moment. Making a debut at a park known for its unique playing conditions is not the same as a home run in a neutral environment, and the roster challenges of an opposing bullpen can be different at that venue. What CBS Sports highlighted, however, was the straightforward result: Báez kept turning each opportunity into another long ball, including the 449-foot center-field drive that set up the record.

For the Cardinals, the immediate question becomes how to treat this kind of early production. A player can be real without it being guaranteed, and MLB history is full of debuts that create noise before settling into a more ordinary workload. The more practical focus for St. Louis is sustaining the conditions that led to those homers, including pitch recognition and how Báez handles adjustments once opponents have live scouting on him.

For everyone watching Báez’s career arc, the next checkpoint is whether this hot start turns into repeatable power or becomes a one-week anomaly. The record is already secured, but MLB careers are built on the second and third times through a lineup, on whether pitchers can change the strike zone and whether a hitter can respond. If Báez continues to produce over the coming games, the Cardinals’ promotion will look less like a lucky debut and more like the payoff for the power they saw all along.