Oliva arrived in the US in the spring of 1961. During spring training that year, he appeared in the Twins' final three games, collecting seven hits in ten at bats. The Twins, however, had already filled their minor league rosters and released Oliva, with some saying it was due to his poor outfield play. Having nowhere else to go, Oliva traveled to Charlotte, North Carolina to train with a friend who played for a Minnesota Twins Class A farm team. His quick wrists, long frame, and "unharnessed power" impressed Charlotte general manager Phil Howser, who placed a call and convinced the Twins to re-sign the potential star.