The Players' Tribune was founded by the player who is now part owner of what other MLB team?
The Players' Tribune:  Founded by former professional Major League Baseball player Derek Jeter, "The Players' Tribune" provides daily sports conversation and publishes first-person stories directly from athletes. Derek Jeter: Derek Sanderson Jeter ( ) (born June 26, 1974) is an American former professional baseball shortstop and the incoming CEO and part owner of the Miami Marlins.
Miami Marlins