Eli Whiteside, a professional baseball catcher, spent several years in Major League Baseball (MLB) primarily known for his defensive skills and role as a backup catcher. Born on October 22, 1979, in New Albany, Mississippi, Whiteside attended Delta State University, where he honed his skills on the baseball field. His journey to the major leagues began when he was drafted by the Baltimore Orioles in the sixth round of the 2001 MLB Draft.

Whiteside made his MLB debut with the Orioles on July 5, 2005. His time with Baltimore was brief, and he appeared in only nine games during the 2005 season. After his stint with the Orioles, Whiteside spent time in the minor leagues, working to refine his abilities and maintain his readiness for future opportunities in the majors.

In 2008, Whiteside's career took a turn when he signed with the San Francisco Giants. Initially assigned to their Triple-A affiliate, the Fresno Grizzlies, he was called up to the Giants later that year. Whiteside became a familiar face in San Francisco, serving as a backup catcher to Bengie Molina and later to Buster Posey. His role was primarily defensive, and he was valued for his ability to handle pitchers and manage games from behind the plate.

Whiteside's tenure with the Giants coincided with a successful period for the team. He was part of the Giants' roster during their 2010 World Series championship run, although he did not play in the postseason. His presence provided depth to the catching position and offered the team a reliable option when needed.

Throughout his time with the Giants, Whiteside was known for his work ethic and professionalism. He played in 56 games during the 2011 season, which was his most active year with the team. Despite limited offensive production, his defensive capabilities and experience were assets to the Giants' roster.

After his time with the Giants, Whiteside had brief stints with other organizations, including the New York Yankees, Texas Rangers, and Chicago Cubs. However, most of his playing time during these years was spent in the minor leagues. Whiteside's career in professional baseball concluded after the 2014 season.