Former Giants lineman Dave Gallagher, who quit football to become a surgeon, dead at 73 admin 16 hours ago USA Update Comments Off on Former Giants lineman Dave Gallagher, who quit football to become a surgeon, dead at 73 3 Views A former Giant defensive tackle who left the team in the 1970s to attend medical school died in January, according to an online obituary. Share Facebook Twitter Stumbleupon LinkedIn Pinterest