Alex Rodriguez Says 'I Love Big Papi' But Won't Say I'm Rooting for Him

Alex Rodriguez says he's definitely a fan of David Ortiz -- but when it comes to rooting for the MLB legend in his last playoff run ... A-Rod stopped short of saying he was rooting for him.

It all went down outside of Craig's in West Hollywood -- Alex was in a good mood and had nothing but love for Big Papi ... but scoffed at the idea of rooting for the Red Sox.