Luciano was promoted Tuesday to Triple-A Sacramento, Alex Pavlovic of NBC Sports Bay Area reports.
Luciano missed the first month of the minor-league season after suffering a stress fracture in his lower back while playing in the Dominican Winter League and then got off to a relatively slow start with Double-A Richmond upon his arrival there in early May. He had turned it on lately, though, slashing .309/.416/.564 across his last 113 plate appearances dating back to June 10. The highly-touted shortstop prospect, who turns 22 in September, is now just one step away from the majors.