Controversial Automated Ball-Strike system is a 'good addition,' but needs development, MLB All-Star says

Cleveland Guardians’ Steven Kwan says ABS challenge system is a ‘good’, but admits shortcomings.

ATLANTA – Minor league baseball players have had the opportunity to get familiar with the Automated Ball-Strike (ABS) system. Major league players were introduced to it in spring training, but once the regular season began, home plate ruled on whether a pitch fell within the strike zone.

The challenge system, which has sparked some controversy in the baseball world, will make its primetime debut at Tuesday's MLB All-Star Game.

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A view of a replay on the videoboard of an Automated Ball-Strike system challenge during a game between the Buffalo Bisons and the Worcester Red Sox on May 5, 2023, at Polar Park in Worcester, Massachusetts. (Erica Denhoff/Icon Sportswire via Getty Images)

The reaction in the days since the MLB confirmed the system would be utilized has been mixed. Those who hold baseball's traditions dear have expressed frustration or even outrage. 

Cleveland Guardians left fielder Steven Kwan, however, took a more measured approach. 

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"I think it's a cool addition," Kwan told Fox News Digital on Monday in Atlanta, the host city for this year's Midsummer Classic. "I think (we) need some more experience with it. We only got to do it in spring training. It's definitely some spring training when you're in the (batters) box with it, but I think overall it's a good addition."

Steven Kwan of the Cleveland Guardians during All-Star Workout Day at Truist Park on July 14, 2025, in Atlanta. (Kevin C. Cox/Getty Images)

During the All-Star game, the National League team and the