Barnes, the oldest of four children born to Dennis and Stephanie Barnes, was born on December 28, 1989, in Riverside, California.
Mike Gallego, his maternal uncle, was a Major League Baseball (MLB) player for the Oakland Athletics. He started playing baseball when he was quite little. Barnes earned the moniker “Hoover” as a shortstop in Little League Baseball due to his ability to catch ground balls.
He went to Riverside Polytechnic High School and played baseball on the same team as future Houston Astros outfielder Jake Marisnick. He was a four-year varsity letter winner at Riverside Poly and served as team captain his final year.
Barnes had a.450 batting average as a junior in 2007, which he increased to.478 as a senior. Barnes played on travel teams and in a summer league outside his high school team, which he helped lead to the American Amateur Baseball Congress (AABC) Don Mattingly Championship in 2017.
Barnes was selected by the Miami Marlins in the ninth round of the 2011 MLB Draft. That season, he made his professional debut with the Class A Short Season Jamestown Jammers of the New York–Penn League, quickly distinguishing himself as both a dedicated catcher and a solid batter.
He was a member of the Greensboro Grasshoppers, Jupiter Hammerheads, and Jacksonville Suns from 2012 to 2014. He alternated between catching and second base.
How Tall Is Austin Barnes?
Austin is 5 feet 10 inches tall.