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Munetaka Murakami’s power was expected, but his plate discipline and approach suggest his breakout with the White Sox could be sustainable.

Four games into the 2026 regular season—and four games into the MLB career of Japanese slugger Munetaka Murakami—there should be no doubt that the Chicago White Sox first baseman is the real deal.

Murakami is one of the most high-profile Japanese players we’ve seen make the transition from Nippon Professional Baseball to Major League Baseball. As a 22-year-old with the Tokyo Yakult Swallows, he hit 56 home runs in a single season, a Japanese record, and has long established himself as one of the faces of baseball in Japan.

Yet, somewhat shockingly, there wasn’t much of a market for Murakami as he prepared to make the jump to MLB. He ended up landing with the White Sox on a two-year, $34 million contract, as contending teams with deeper pockets either prioritized different free agents or questioned his ability to handle big league pitching.

Teams seemed uncertain about whether Murakami would be able to handle velocity in the United States. He didn’t have the strongest track record against high velocity in Japan, nor did he see it very often. That opened the door for a team like the White Sox to swoop in and take a gamble—betting on Murakami’s upside and his ability to adjust his swing to the MLB style of play.

So far, he’s done that and more.

Not only has Murakami proven that his power is going to translate—he became just the fourth player in MLB history to homer in each of his first three career games over the weekend in Milwaukee—but he’s also shown a disciplined approach at the plate that should significantly raise his offensive floor.

Murakami has struck out five times in his first four games, which would put him on pace for 203 strikeouts over a full 162-game season. But those strikeout numbers were always going to be part of the profile. The more important thing to monitor is his four walks and his on-base percentage, which currently sits at .444.

Strikeouts are just outs. Unless there are runners on base who need to be moved over or driven in, there’s often no real difference between a strikeout and a lazy fly ball to center. And as we’ve seen with players like Kyle Schwarber, who has developed into a star and potential future Hall of Famer in Philadelphia, high strikeout totals don’t necessarily limit offensive production.

Over his last four seasons with the Phillies, Schwarber has struck out 809 times (an average of more than 200 per year) but he’s also drawn 426 walks, maintained an on-base percentage around .350, and hit 187 home runs. If you’re hitting 40–45 home runs a year and getting on base at a respectable clip, the strikeouts become an afterthought. And I’m starting to believe Murakami is that caliber of hitter.

Through four games, Murakami’s walk rate is elite, and his chase rate is well above average. He’s not expanding the strike zone or doing a pitcher’s job for him. That not only boosts his on-base numbers, but it also forces opposing pitchers to work and makes life easier for the hitters around him.

Murakami has seen 75 pitches in 18 plate appearances—that’s about 4.2 pitches per plate appearance. You have to work to get him out, and if you make a mistake, he makes you pay.

For a hitter with Murakami’s power, that significantly raises his offensive floor and expands the ways he can contribute. If he’s getting on base, producing quality at-bats, and doing damage when he makes contact, he’s going to help the team—even during his slumps.

Which is exactly why White Sox fans should be soaking in just how good Murakami has looked to begin the 2026 season.

Whether he remains in Chicago long-term is still an open question. There’s already been plenty of discourse about his future with the White Sox and whether the organization would consider a trade before exploring an extension. There are valid arguments on both sides, but it’s far too early in his MLB career to seriously entertain those conversations.

What is fair to say is this: the White Sox have an extremely valuable asset in Munetaka Murakami—and right now, he’s looking like the steal of the offseason.

This doesn’t feel like a fluky start fueled by unfamiliarity. The swing path, the patience, and the overall offensive profile all suggest that Murakami’s early success is at least somewhat sustainable. And as the weather warms up—and as he gets more games in a hitter-friendly ballpark at Rate Field—we could be looking at some truly impressive power numbers from the rookie in 2026.