Juan Berenguer was a professional baseball player who played as a pitcher for various teams in the Major League Baseball (MLB) during his career. Berenguer was born in Panama in 1954 and began his baseball career in the minor leagues in the United States in the late 1970s. He made his MLB debut in 1978 with the Toronto Blue Jays, but he only played in a few games before being traded to the New York Mets.

Berenguer played for several teams during his career, including the Detroit Tigers, San Francisco Giants, Minnesota Twins, and Kansas City Royals. He was known for his powerful fastball and his ability to pitch effectively in relief situations. Berenguer was also known for his distinctive windup, which involved him lifting his leg high in the air before delivering the pitch.

Berenguer's best season came in 1987 when he played for the Minnesota Twins. He had a record of 8-1 with an earned run average (ERA) of 3.94 and 84 strikeouts. He also played a key role in the Twins' World Series championship that year, pitching in three games and earning a win in Game 2.

Berenguer continued to play in the MLB until 1992, when he retired at the age of 38. He finished his career with a record of 67-62 and an ERA of 3.90. He also had 1,044 strikeouts and 57 saves.

After retiring from baseball, Berenguer returned to his native Panama and became involved in coaching and youth baseball programs. He also worked as a broadcaster for MLB games in Latin America.

Overall, Juan Berenguer had a successful career as a pitcher in the MLB. He was known for his powerful fastball and his ability to pitch effectively in relief situations. He played for several teams during his career and was a key player in the Minnesota Twins' World Series championship in 1987. After retiring from baseball, Berenguer remained involved in the sport through coaching and broadcasting.