Báez led the minors in home runs before his promotion, and he showed off that power at Wrigley Field
Aug 15, 2026
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You can’t have a better start to your career than Joshua Báez. Saturday afternoon at Wrigley Field, the St. Louis Cardinals left fielder became the first player in major league history to hit three home runs in his MLB debut, and he did it in his first three at-bats.
The first homer came on the very first pitch Báez saw in the show. “It’s unreal. I really can’t put it into words,” Báez said during a postgame television interview. “Honestly, it’s just a dream come true.”
Báez hit his first home run, a mammoth 449-foot blast, halfway up the bleachers in center.
He hit his second home run to left field and his third to right field. That’s impressive all-fields power for any player, let alone a rookie making his MLB debut. Here are Báez’s three home runs from the Cardinals’ 8-4 victory over the Chicago Cubs:
All three home runs came off lefty Matthew Boyd and it was surprising that manager Craig Counsell let Boyd face Báez a third time.
He’d already taken him deep twice, it was still a close game (4-3 Cardinals at the time), and Boyd was approaching 90 pitches. Boyd surrendered another home run to Jordan Walker soon after Báez’s third shot.
“Gosh, that was incredible to watch. And this kid really brings something really cool to this clubhouse,” Cardinals manager Oliver Marmol said. “For him to come into his first game and show out the way that he did, that was fun. There was a lot of smiling and that was really, really cool to watch.”
Best MLB debuts of all-time: Where does Joshua Báez’s three-homer performance fit in baseball history?
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In the eighth inning, Báez had the chance for a fourth home run, but lined out to left field. He went 3 for 4 with the three homers and 5 RBI in the game. Báez is the eighth player in baseball’s Modern Era (since 1900) to hit multiple home runs in his regular-season MLB debut, and the third this season. Cleveland Guardians outfielder Chase DeLauter did it on Opening Day, though he technically made his debut last postseason. Arizona Diamondbacks infielder Jose Fernandez also hit two homers in his MLB debut on March 31. Here are the eight players with at least two home runs in their MLB debuts:
Player Date Joshua Báez, Cardinals (three)
Aug. 15, 2026
Jose Fernandez, Diamondbacks
March 31, 2026
Chase DeLauter, Guardians
March 26, 2026
Trevor Story, Rockies
April 4, 2016
JP Arencibia, Blue Jays
Aug.
7, 2010
Mark Quinn, Royals
April 14, 1999
Bert Campaneris, Kansas City Athletics
July 23, 1964
Bob Nieman, St. Louis Browns
Sept. 14, 1961
Nieman and Keith McDonald are the only players other than Báez to hit home runs in their first two MLB at-bats. McDonald hit two homers in his first two at-bats with the Cardinals in 2000, but across two games. He hit a pinch-hit homer in his first at-bat on July 4, then went deep in his first at-bat two days later. Báez is the second player to hit his first three MLB home runs in the same game. Catcher Seby Zavala, then with the Chicago White Sox, had a three-homer game against the Guardians on July 31, 2021 .
It was Zavala’s 18th career game. Báez led minor leagues in homers before promotion Prior to his MLB debut, Báez was leading the minors with 36 home runs, all at the Triple-A level.
He hit .256/.328/.573 in 103 Triple-A games overall and even had a four-homer game back in June. The promotion was certainly deserved.
Baseball America ranked Báez the 56th-best prospect in baseball in their August rankings. They call him one of the best power-hitting prospects in the minors, unsurprisingly. “There’s an edge to it,” Marmol said about Báez on Friday (via MLB.com). “There’s a confidence to it, and he has a work ethic that’s fun to watch, too. He knows how to get after it. He wants to win, and it’s fun to inject that into this clubhouse because we have a lot of guys that are that way.”
Saturday is an important day for MLB rookies.
There are 44 days remaining in the season, meaning players called up Saturday (or later) will not accrue the 45 days of service time necessary to exhaust rookie status. That means Báez will remain eligible to win Rookie of the Year next season, which would net St. Louis a Prospect Promotion Incentive draft pick. Báez, 23, was a second-round pick (No.
54 overall) in the 2021 draft. He hit 22 home runs total from 2022-24, then broke out with 20 between High Class-A and Double-A in 2025 before exploding for those 36 home runs in Triple-A in 2026.
Báez had a four-homer game in Triple-A on June 16. Saturday’s win improved the Cardinals to 62-61 on the season. They’re three games behind the third wild card spot. The Cubs sit in the top wild card spot at 72-52.
