Luis Vizcaino 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 August 6, 1974, in the Dominican Republic and began his professional career in 1994 when he signed with the Oakland Athletics as an amateur free agent.

Vizcaino made his MLB debut in 1999 with the Athletics and played for them until 2001. He then played for several other teams, including the Milwaukee Brewers, Chicago Cubs, Arizona Diamondbacks, New York Yankees, Colorado Rockies, and Cleveland Indians. He was known for his ability to pitch in high-pressure situations and was often used as a setup man or closer.

Throughout his career, Vizcaino had a record of 34-27 with an ERA of 4.33. He recorded 28 saves and struck out 408 batters in 537 innings pitched. He was also known for his durability, as he appeared in over 70 games in four different seasons.

One of Vizcaino's most memorable moments came in the 2007 playoffs when he was pitching for the Yankees. In Game 2 of the American League Division Series against the Cleveland Indians, he came in to pitch in the 11th inning with the score tied at 1-1. He pitched two scoreless innings and earned the win when the Yankees scored in the bottom of the 13th inning.

Vizcaino's career came to an end in 2010 when he was released by the Washington Nationals during spring training. He attempted to make a comeback in 2012 but was unable to secure a contract with any team.

Overall, Luis Vizcaino had a solid career as a relief pitcher in MLB. He was known for his ability to pitch in high-pressure situations and was a valuable asset to several teams throughout his career. While he may not be remembered as one of the all-time greats, he was a reliable and consistent performer who made a significant contribution to the game of baseball.