Alex Rodriguez brought a secret weapon to a business meeting Monday ... his GF, Jennifer Lopez.
Alex arrived at the NYC office building alone just before 1 PM ... we're told for a "post baseball opportunity." J Lo arrived shortly thereafter and they left together at 1:30.
We're told A-Rod respects J Lo's business acumen and wanted her there. He's been fielding offers since his retirement and we're told this meeting was important enough that he wanted her take.
Careful ... mixing romance and business can be dicey.