Upon further review, the ABS Challenge System has been confirmed for the 2026 MLB season.

The Joint Competition Committee voted Tuesday afternoon to bring the Automated Ball-Strike (ABS) Challenge System, powered by T-Mobile, to the big leagues following several years of experimentation in the Minor Leagues and use in MLB Spring Training and the All-Star Game this year.

"The previous rule changes that have been adopted by the Joint Competition Committee have had staying power and created momentum for the game,” MLB Commissioner Rob Manfred said in a statement. "We used the same process with ABS that started with listening to fans, conducting extensive testing at the Minor League level, and trying at every step to make the game better. Throughout this process we have worked on deploying t

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