Mark Leiter, a right-handed pitcher, embarked on his Major League Baseball career when he was drafted by the Baltimore Orioles in the fourth round of the 1983 MLB Draft. However, it wasn't until April 13, 1990, that he made his MLB debut with the New York Yankees. His journey through the major leagues was marked by a series of transitions between teams, showcasing his adaptability and skill on the mound.

Leiter's tenure with the Yankees was brief, and he soon found himself traded to the Detroit Tigers in 1991. During his time with the Tigers, he began to establish himself as a reliable pitcher, appearing in 52 games over two seasons. His performance caught the attention of the California Angels, who acquired him in 1994. With the Angels, Leiter continued to hone his craft, contributing both as a starter and a reliever.

In 1996, Leiter joined the San Francisco Giants, where he played a pivotal role in their pitching staff. His versatility allowed him to fill various roles, whether it was starting games or coming out of the bullpen. This adaptability was a hallmark of his career, enabling him to extend his time in the majors.

The following year, Leiter signed with the Montreal Expos, adding another chapter to his diverse career. His stint with the Expos was followed by a move to the Philadelphia Phillies in 1997. It was with the Phillies that Leiter enjoyed one of his most productive seasons, appearing in 65 games in 1998 and recording a career-high 92 strikeouts.

Leiter's journey continued as he joined the Seattle Mariners in 1999. His experience and veteran presence were valuable assets to the Mariners' pitching staff. After a brief return to the Milwaukee Brewers, Leiter found himself back with the Tigers in 2001, where he concluded his major league career.

Throughout his time in MLB, Leiter was known for his ability to adapt to different roles and teams. His career statistics include a win-loss record of 65-73, an earned run average of 4.57, and 892 strikeouts. These numbers reflect a career spent contributing to various teams across the league, often stepping into challenging situations and delivering solid performances.

Mark Leiter's baseball career is also notable for his family connections in the sport. He is the older brother of Al Leiter, another accomplished MLB pitcher, and the uncle of Mark Leiter Jr., who also pursued a career in professional baseball. This family legacy in the sport underscores the Leiter family's long-standing association with baseball.

In summary, Mark Leiter's career in Major League Baseball was characterized by his adaptability and steady presence on the mound.