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Major League Baseball's new automated ball-strike challenge system is finally here.
Beginning with Wednesday night's New York Yankees-San Francisco Giants 2026 MLB season opener, players will be able to appeal the ball and strike calls made by plate umpires.
Each team will get two challenges to start the game. Immediately after a pitch is thrown -- and with no help from the dugout in deciding -- the pitcher, catcher or hitter can challenge the ball or strike call by tapping his helmet or hat.