José Antonio's tennis career spans over three decades, distinguished by remarkable achievements both on and off the court. His journey began with a victory at the 1979 Orange Bowl World Championship for Juniors, a milestone that signaled his early promise in the sport. He then transitioned to the professional circuit, where he competed on the ATP Tour for 12 years, reaching a career-high ranking of 202 in 1991. His contributions to the Chilean Davis Cup team from 1986 to 1992 further cemented his reputation as a skilled and dedicated player.