MLB announces crew chiefs for Wild Card Series umpire crews

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What happened
Jordan Baker, Bill Miller, Alan Porter and Mark Wegner will be the umpire crew chiefs for this week’s Wild Card Series. All crew chiefs will be at third base for the openers and will not work behind the plate during the best-of-three round, Major League Baseball said Monday. Miller will be working his eighth wild-card round, and Baker, Porter and Wegner will work their sixth.
Summary assembled by rule from the sources below