Mike DeJean is a former Major League Baseball pitcher who played for several teams during his career. He was born on September 28, 1970, in Baton Rouge, Louisiana, and attended West Jefferson High School in Harvey, Louisiana. After high school, he attended Blinn College in Brenham, Texas, where he played baseball for two years before transferring to the University of West Alabama.

DeJean was drafted by the New York Yankees in the 24th round of the 1992 MLB draft but did not sign with the team. Instead, he signed with the Milwaukee Brewers as an undrafted free agent in 1993. He made his MLB debut with the Brewers in 1997 and played for the team until 1999.

In 2000, DeJean was traded to the Colorado Rockies, where he played for two seasons. He then played for the Baltimore Orioles in 2002 before being traded to the Montreal Expos later that year. He played for the Expos until 2003, when he was traded to the New York Mets. He played for the Mets for one season before being traded to the Baltimore Orioles in 2004.

DeJean's best season came in 2002 when he recorded 27 saves for the Expos and was named to the National League All-Star team. He finished the season with a 2.73 ERA and 68 strikeouts in 66 innings pitched.

Overall, DeJean played in 581 MLB games over the course of his career, recording 48 saves and a 4.12 ERA. He retired from baseball in 2006 at the age of 35.

In addition to his MLB career, DeJean also played for Team USA in the 2000 Summer Olympics in Sydney, Australia. He helped lead the team to a bronze medal, pitching in three games and recording two saves.

After retiring from baseball, DeJean worked as a scout for the San Diego Padres and as a pitching coach for the New Orleans Zephyrs, a minor league team in the Miami Marlins organization. He currently works as a scout for the Pittsburgh Pirates.

In conclusion, Mike DeJean had a successful career as a Major League Baseball pitcher, playing for several teams over the course of his career. He was named to the National League All-Star team in 2002 and helped lead Team USA to a bronze medal in the 2000 Summer Olympics. After retiring from baseball, he continued to work in the sport as a scout and pitching coach.