Mike Marshall was a professional baseball player who played as a relief pitcher for various teams in the Major League Baseball (MLB) during his career. He was born on January 15, 1960, in Libertyville, Illinois, and attended the University of Michigan, where he played college baseball.

Marshall was drafted by the Los Angeles Dodgers in the second round of the 1980 MLB draft and made his debut in the same year. He quickly established himself as a reliable relief pitcher, known for his durability and ability to pitch in multiple innings. He was also known for his unorthodox pitching style, which involved a high leg kick and a sidearm delivery.

During his career, Marshall played for several teams, including the Dodgers, the New York Mets, the Boston Red Sox, the Minnesota Twins, the Houston Astros, and the New York Yankees. He was particularly successful during his time with the Dodgers, where he won the National League Cy Young Award in 1974 and was named an All-Star in 1974 and 1975.

Marshall's best season came in 1974 when he posted a record of 15-12 with a 2.42 ERA and 21 saves. He also pitched in a record 106 games that season, a feat that still stands today. Marshall was a key member of the Dodgers' bullpen during their run to the World Series in 1974 and 1977, although they lost both times.

Despite his success, Marshall was often criticized for his unorthodox pitching style, which some believed put too much strain on his arm. He was also known for his outspoken personality and clashed with coaches and teammates at times.

Marshall retired from baseball in 1991 with a career record of 97-112, a 3.14 ERA, and 188 saves. He also holds the record for most games pitched in a single season with 106, a record that has stood for over 40 years. After retiring, Marshall became a pitching coach and worked with several teams, including the Chicago Cubs, the Seattle Mariners, and the Montreal Expos.

In conclusion, Mike Marshall was a successful relief pitcher who played for several teams during his career. He was known for his durability, unorthodox pitching style, and outspoken personality. Despite some criticism, he was a key member of several successful teams and holds a record that still stands today.