A-Rod & Jlo's Love Game Going Stronger

Alex Rodriguez fans got a smoking hot 2-for-1 deal when Jennifer Lopez unexpectedly showed up at his side for a sports memorabilia show.

J Lo surprised the Chicago crowd at the National Sports Collectors Convention when 10 minutes into A-Rod's signing session . She quietly walked out from behind a curtain and sat next to him. Witnesses say there was zero fanfare or announcement.

Jennifer just beamed at Alex while he signed items for fans, minimum $150 a pop and she frequently stood up to snap pics of him. You it's love when she's happy to watch you work and work is signing your name over and over and over again.