White Sox rookie Sam Antonacci is suddenly becoming impossible to ignore in May originally appeared on The Sporting News.
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The Chicago White Sox have spent much of the last few years searching for players who can consistently pressure opposing pitchers, grind through at-bats and simply find ways to get on base. In the middle of a surprisingly competitive stretch for Chicago, rookie Sam Antonacci is starting to look like exactly that kind of player.
Antonacci is not overpowering opponents with tape-measure home runs or highlight-reel exits. Instead, the 23-year-old is quietly building the type of month that managers and teammates love because it impacts winning almost every night.
Since the calendar flipped to May, Antonacci has been one of the hottest hitters in Chicago’s lineup. Entering Monday, he was batting .333 during the month with a .414 on-base percentage and an .826 OPS. Then he came away with two more hits Monday night, despite the loss.
Even more impressive is the way he has produced those numbers. Antonacci already has 19 hits in May while constantly finding ways to reach base through walks, hit-by-pitches and disciplined at-bats that wear pitchers down.
For a White Sox team sitting at 24-23 and trying to stay near the top of the AL Central, that consistency has become incredibly valuable.
Sam Antonacci is giving the White Sox exactly what they needed
What stands out most about Antonacci’s game is how polished it already looks for a rookie who debuted just over a month ago. Through his first 94 major league at-bats, he owns a .298 batting average with a .391 on-base percentage and an .817 OPS. Even more impressive, he has struck out only 14 times all season.
That approach has helped stabilize Chicago’s lineup during a strong stretch in May. Antonacci has scored 11 runs this month while consistently setting the table for the hitters behind him. He is also contributing in ways that do not always jump off the stat sheet. His aggressive baserunning, ability to extend innings and willingness to battle through long plate appearances have helped energize the offense.
The White Sox are suddenly playing meaningful baseball again, and Antonacci has quietly become one of the reasons why.
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The journey to Chicago was never supposed to happen this quickly
Antonacci’s rise has been anything but conventional. The Springfield, Illinois native first made a name for himself at Heartland Community College, where he completely dominated junior college pitching. During his sophomore season in 2023, he hit .515 with 14 home runs and 103 RBI while being named NJCAA Division II Player of the Year.
From there, he transferred to Coastal Carolina Chanticleers and continued proving he could hit at a higher level. The White Sox selected him in the fifth round of the 2024 MLB Draft, but even then, few expected him to move through the organization this quickly.
Antonacci forced the issue almost immediately.
He hit .291 in the minors during the 2025 season while stealing 48 bases and showing off the all-around game that made him such an intriguing prospect. Then came an eye-opening Arizona Fall League performance where he batted .378 and emerged as one of the breakout names in the entire league.
By the time Chicago called him up in April, the organization already believed he could help right away.
Chicago may have found a long-term spark at the top of the lineup
The most encouraging part of Antonacci’s start is that it feels sustainable. He is not relying on an unsustainable power surge or a lucky stretch of home runs. His value comes from consistently putting the ball in play, controlling the strike zone and creating pressure every time he reaches base. Those players tend to become important pieces on winning teams.
Antonacci has already shown defensive versatility, appearing at multiple positions while giving manager and lineup flexibility. But his biggest impact may simply be the tone he sets offensively. Every lineup benefits from players who can keep innings alive and frustrate opposing pitchers.
Right now, Antonacci is doing exactly that for the White Sox. And for a franchise desperately searching for foundational young players, his breakout May could be the beginning of something much bigger.
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