Brewer was drafted by the Chicago Cubs in 1960 and made his MLB debut with the team in 1963. He spent six seasons with the Cubs, primarily as a relief pitcher. In 1967, he had his best season, posting a 1.31 ERA and 16 saves.
After the 1968 season, Brewer was traded to the Los Angeles Dodgers. He spent the next six seasons with the Dodgers, where he was primarily used as a setup man for closer Mike Marshall. Brewer was a key member of the Dodgers' bullpen during their run to the World Series in 1974, where they lost to the Oakland Athletics.
Brewer was traded to the Chicago White Sox in 1975 and spent two seasons with the team. He then played for the California Angels and the Montreal Expos before retiring after the 1986 season.
During his career, Brewer had a record of 69-65 with a 3.07 ERA and 132 saves. He was known for his durability and consistency as a relief pitcher.
After retiring from baseball, Brewer worked as a scout for several MLB teams, including the Dodgers and the San Francisco Giants. He also worked as a pitching coach for the Fresno State baseball team.
Brewer passed away in 1987 at the age of 49 due to complications from a brain tumor. He was posthumously inducted into the Fresno County Athletic Hall of Fame in 1990.
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