As the youngest of the three children, Javier spent the most time with his sister, Sheyla, being the only one of the three to have a full time job, being a cashier at a local pharmacy.
In May 2013, Javier Baez considered retiring from professional baseball, as he had registered at a baseball camp in his native Puerto Rico, but due to a rash of injuries, it was unlikely that he would be able to make it through into the spring. When he was 10 years old, he reportedly played in a recreational baseball league with his brother, and the season included team practices and a tournament at a public park, where his brother said Javier struck out 12 times.
Baez attended the Puerto Rican School of Baseball (SPR) in Florida.
In 2014, Baez was granted a scholarship to attend the university of Miami and play baseball for their baseball team.
He attended the Colegio Monserrat in Puerto Rico and was considered athletically gifted. As a teenager, Baez participated in baseball, American football and was the lead in both volleyball and basketball.
Báez attended Homestead High School in Florida and played for their baseball team. He was a star on the team, winning 2A All-State honors for the second time. In addition to his high school teams, Baez also played for the state championship team and was the Cleats for Life MVP for the state championship.
In his senior year, Baez hit .450 with nine home runs, 43 runs batted in (RBI), and 18 doubles. The school named him the Scholar Athlete of the Year, Offensive Player of the Year, and Best Defensive Player.
Despite the accolades, Baez did not sign a letter of intent to play college baseball at the University of Miami, choosing instead to sign a letter to attend Vanderbilt UniversityAll Rights Reserved