News emerges MLB used 2 types of baseballs in 2021 as labor deadline passes : NPR
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What you need to know about MLB in 2021
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The Joys of Korean Baseball and the Risks of Bringing Back Sports | The New Yorker
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The tremendous barriers to bringing back baseball - MLB | NBC Sports
How many baseballs are used in an MLB game? We tracked a Guardians-Tigers game to find out - The Athletic
Major League Baseball has a diversity problem, experts say. This year's World Series is proof | CNN
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