Starting in the 2026 season, Major League Baseball players will be able to challenge called balls and strikes in regular and postseason games for the first time.

Beginning in 2026, MLB will roll out the ABS Challenge System—a move that could redefine the delicate balance between tradition and technology.

"My single biggest concern is working through the process and deploying it in a way that's acceptable to the players," Manfred said at the time.