Mike Fitzgerald, a catcher in Major League Baseball, began his professional career with the New York Mets. Drafted by the Mets in the sixth round of the 1978 amateur draft, Fitzgerald made his MLB debut on September 13, 1983. During his time with the Mets, he quickly demonstrated his defensive skills behind the plate, which were complemented by a solid batting performance.

In 1984, Fitzgerald was involved in a significant trade that sent him to the Montreal Expos. This trade, which included several players, brought Gary Carter to the Mets. Fitzgerald's tenure with the Expos marked the most extended period he spent with a single team in his career. As a catcher for the Expos, he became known for his reliable presence and ability to handle the pitching staff effectively. His defensive prowess was a key asset to the team, and he was often praised for his game-calling abilities.

Fitzgerald's offensive contributions were steady, and he occasionally provided power at the plate. One of his memorable moments came in 1985 when he hit a grand slam on Opening Day against the Philadelphia Phillies, showcasing his potential to deliver in crucial situations. Throughout his time with the Expos, Fitzgerald maintained a consistent batting average and contributed to the team's overall performance.

In 1991, Fitzgerald joined the California Angels, where he continued to play as a catcher. Although his time with the Angels was shorter, he brought his experience and defensive skills to the team. Fitzgerald's career in Major League Baseball concluded after the 1992 season, marking nearly a decade of playing at the highest level of the sport.

Throughout his career, Fitzgerald was respected for his work ethic and professionalism.