Justin Hagenman is an American professional baseball pitcher currently with the New York Mets of Major League Baseball. Drafted by the Los Angeles Dodgers in 2018 out of Penn State, he progressed through multiple minor league affiliates before trades brought him to the Boston Red Sox organization and eventually the Mets. This tag page collects news, articles, interviews, and updates covering Hagenman’s MLB debut in 2025, his transition between starting and relief roles, minor league milestones across the Dodgers, Red Sox, and Mets systems, his first major league save in August 2025, and subsequent injury developments with the Mets.
