The next big match-up between a Youtuber and a ‘proper’ boxer is the bout between Jake Paul and Mike Tyson this summer.
Meulens is seen in a since-deleted video sitting in one of the pilots' seats during a team charter from Denver to Toronto.
The Mets are one of eight teams debuting City Connect uniforms this season.
The Pittsburgh star became the 160th player in MLB history to reach the milestone.