Sergio Romo is a former professional baseball player who played as a relief pitcher in Major League Baseball (MLB) for over a decade. He was born on March 4, 1983, in Brawley, California, and grew up in a Mexican-American family. Romo attended Arizona Western College and later transferred to Mesa State College, where he played college baseball.

Romo was drafted by the San Francisco Giants in the 28th round of the 2005 MLB draft. He made his MLB debut on June 26, 2008, and quickly became a valuable member of the Giants' bullpen. Romo was known for his unorthodox delivery, which included a hesitation before his windup. He also had a devastating slider that he used to strike out batters.

Romo played for the Giants for nine seasons, from 2008 to 2016. During his time with the team, he helped them win three World Series championships in 2010, 2012, and 2014. Romo was a key member of the Giants' bullpen during their playoff runs, and he recorded the final out of the 2012 World Series.

In 2017, Romo signed with the Los Angeles Dodgers as a free agent. He played for the Dodgers for one season before being traded to the Tampa Bay Rays in February 2018. Romo played for the Rays for two seasons, and he was used primarily as a closer during his time with the team. He recorded 25 saves for the Rays in 2018, which was the second-highest total of his career.

After his stint with the Rays, Romo signed with the Minnesota Twins in February 2019. He played for the Twins for one season before being traded to the Miami Marlins in July 2019. Romo played for the Marlins for two seasons, and he was used primarily as a setup man during his time with the team.

Romo announced his retirement from baseball on June 17, 2021, after a 13-year career in the MLB. He finished his career with a 2.92 ERA, 132 saves, and 648 strikeouts in 654 innings pitched. Romo was known for his competitiveness and his ability to pitch in high-pressure situations. He was also known for his colorful personality and his love for the game of baseball.

In conclusion, Sergio Romo had a successful career as a relief pitcher in the MLB. He played for five different teams during his career and helped the San Francisco Giants win three World Series championships. Romo was known for his unorthodox delivery and his devastating slider, and he was a valuable member of every bullpen he played for.