Ya don't buy a car without checkin' under the hood, right?
And if you're Alex Rodriguez and Jennifer Lopez, ya don't buy a pro baseball team without checking out the stadium!
That's what J-Rod did on Wednesday -- getting a VIP tour of CITI Field in Queens as part of their plan to by the team.
J.Lo -- sporting a flowing white sundress -- led the charge with A-Rod and a few other businessy-lookin' dudes.
As we previously reported, the power couple has been gunning to buy the team for months -- and recently linked up with some rich partners to add to their ownership group.