UFC fighter Ray Borg says tough genes run in the family ... with his newborn son fighting like a champ after undergoing his 2nd major brain surgery
Ray's son, Anthony, was diagnosed with hydrocephalus -- excess fluid in the brain -- after a premature birth at the end of March.
Anthony underwent two major brain surgeries -- and unfortunately suffered seizures -- but the good news ... Ray says things have taken a turn for the better and he's getting healthier every day.
Still, the medical costs are adding up so Ray started a GoFundMe page .