John "Bad Dude" Stearns -- a beloved New York Mets catcher and four-time All-Star -- has sadly died at 71 years old.
Former Mets exec Randye Ringler announced the news on his social media page ... saying Stearns -- who played for NY from 1975 to 1984 -- passed away on Thursday.
"May he be setting up to catch Tom Seaver in Baseball Heaven and Resting in Peace," Ringler said. "He left us all with so many wonderful memories."