Rheal Cormier, a left-handed pitcher from Moncton, New Brunswick, Canada, enjoyed a lengthy career in Major League Baseball. His journey began when he was drafted by the St. Louis Cardinals in the sixth round of the 1988 MLB Draft. Cormier made his major league debut with the Cardinals on August 15, 1991. During his time with St. Louis, he demonstrated his skills as a reliable pitcher, both as a starter and a reliever.

In 1994, Cormier was traded to the Boston Red Sox, where he continued to develop his craft. His tenure with the Red Sox saw him primarily in a starting role, and he contributed to the team's pitching rotation with his consistent performances. However, his time in Boston was interrupted by the 1994-1995 MLB strike, which affected the entire league.

Cormier's career took another turn when he was traded to the Montreal Expos in 1996. Playing for the Expos was a special opportunity for Cormier, as it allowed him to represent a Canadian team. His stint with the Expos was brief, and he soon found himself with the Philadelphia Phillies after being traded in 2000.

With the Phillies, Cormier transitioned into a full-time relief pitcher, a role in which he excelled. His ability to handle pressure situations and deliver crucial outs made him a valuable asset in the bullpen. Cormier's time in Philadelphia was marked by some of his best seasons, including a standout performance in 2003 when he posted a 1.70 ERA over 65 appearances.

In 2006, Cormier was traded to the Cincinnati Reds, where he continued to serve as a reliable reliever. His experience and poise on the mound were assets to the Reds' bullpen. Cormier's final MLB season came in 2007 with the Atlanta Braves, where he wrapped up his professional playing career.

Throughout his career, Cormier was known for his durability and adaptability on the mound.