Mets' Steven Matz's grandpa went viral and he has no idea what it means
RIP Grandpa Matz : r/NewYorkMets
Ex-Met Steven Matz agrees to four-year deal with Cardinals
RIP Grandpa Matz : r/NewYorkMets
Mets' Steven Matz driven by helping and hosting others – New York Daily News
Steven Matz on Growing Up a Mets Fan
Mets' Steve Cohen 'not happy' with Steven Matz's agent after Cardinals deal
Steven Matz's grandfather, Bert Moller, has become a star, too - Newsday
Steven Matz's grandfather is the greatest Mets fan ever - Amazin' Avenue