The 24-year-old outfielder disagreed with third base umpire Darius Ghani, believing he had actually held up. So, Gilbert tapped his helmet and initiated a review of the check swing – something that had never been done before.

Mets prospect Drew Gilbert had his best game in this year's Arizona Fall League on Wednesday, smashing two home runs in a three-hit day.

There's no indication of if and/or when the automated check-swing challenge will make its way to the regular season and up to the majors. ( MLB continues to experiment with the automated ball-strike system in the minor leagues, with commissioner Rob Manfred suggesting it could be introduced down the road in MLB using a similar challenge system .)

Baseball history was made this week, just not during either league championship series.