Alcantara signed a minor-league contract with the Giants on Wednesday that includes an invitation to spring training, Francys Romero of BeisbolFR.com reports.
Alcantara spent time last season with the Pirates' and Diamondbacks' Triple-A affiliates, slashing .271/.388/.416 across 492 total plate appearances. The 28-year-old infielder will compete for a bench spot during spring training, but he seems destined to begin the new season with Triple-A Sacramento.