Tyler Heineman is an American professional baseball catcher whose journeyman career has carried him through the Houston Astros, Miami Marlins, San Francisco Giants, St. Louis Cardinals, Pittsburgh Pirates, Boston Red Sox, and Toronto Blue Jays organizations. This news archive tag gathers reported updates on his MLB debut with the Marlins in 2019, his transactions and waiver claims, minor league stops in the Pacific Coast and International Leagues, and his most recent role as the backup catcher behind Alejandro Kirk in Toronto. The tag is relevant for readers following depth catchers, late-inning roster moves, and the 2025 Blue Jays season, including his September appearance as an emergency pitcher against the Royals.