White Sox rookie Sam Antonacci is suddenly becoming impossible to ignore in May

White Sox rookie Sam Antonacci appeared to be unable to ignore May’s first appearance in Sporting News. Add Sports News as a Favorite Source by clicking here.

The Chicago White Sox have spent much of the last few years searching for players who can consistently pressure opposing hitters, grind out at-bats and find ways to get off the ground. In the middle of Chicago’s surprising rivalry, rookie Sam Antonacci is starting to look like exactly that type of player.

Antonacci doesn’t beat opponents with tape-measure home runs or highlight-reel outings. Instead, the 23-year-old is quietly building the kind of month that managers and teammates love because it has a winning impact almost every night.

Since the calendar flipped to May, Antonacci has been one of the hottest hitters on Chicago’s roster. Entering Monday, he was hitting .333 during the month with a .414 on-base percentage and an .826 OPS. He then came back with two more hits on Monday night, despite the loss.

What’s even more impressive is how he produced those numbers. Antonacci already has 19 hits in May while constantly finding ways to get on base with walks, hit-by-pitches and smart at-bats that put pitchers down.

For a White Sox team that sits at 24-23 and is trying to stay near the top of the AL Central, that consistency has become more important.

Sam Antonacci gives the White Sox exactly what they needed

What stands out about Antonacci’s game is how polished it already is for a rookie who made his debut 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 only struck out 14 times all season.

That approach helped stabilize Chicago’s schedule during a tight stretch in May. Antonacci has scored 11 runs this month and has always set the table for hitters behind him. He also contributes in ways that don’t always come off the stat sheet. His aggressive baserunning, ability to stretch innings and willingness to battle through long plate appearances have helped him power the offense.

The White Sox are playing meaningful baseball again, and Antonacci has quietly become one of the reasons.

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The trip to Chicago was not supposed to happen this soon

Antonacci’s rise was anything but ordinary. The student who hails from Springfield, Illinois first made a name for himself at Heartland Community College, where he completely dominated college hitting. During his sophomore season in 2023, he hit .515 with 14 home runs and 103 RBI while being named the NJCAA Division II Player of the Year.

From there, he moved to the Coastal Carolina Chanticleers and continued to show that he could hit at a high 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 immediately.

He hit .291 in the minors during the 2025 season while stealing 48 bases and showing a complete game that made him an intriguing prospect. Then came an eye-opening Arizona Fall League game where he hit .378 and emerged as one of the biggest names in the entire league.

When 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 list

The most encouraging part of Antonacci’s debut is that it feels sustainable. He doesn’t depend on an endless supply of energy or the luck of a home run. His value comes from consistently putting the ball in play, controlling the strike zone and creating pressure every time he gets on base. Those players are often key pieces to winning teams.

Antonacci has already shown defensive versatility, appearing in multiple positions while providing leadership and flexibility. But his greatest impact may simply be the tone he sets so offensively. Every system benefits from players who can keep the innings alive and frustrate the opposition.

Right now, Antonacci is doing just that for the White Sox. And for a franchise desperate for young core players, his exit in May could be the start of something much bigger.

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