On July 2, 2016 the Diamondbacks signed Geraldo Perdomo to a minor league contract. He came to the team out of the Dominican. Through 2019, Perdomo worked his way through the lower levels of the minors, culminating in an Arizona Fall League appearance for the Salt River Rafters. By the time 2020 hit, he was invited to Spring Training and selected for the alternate training site. By the end of the season, he was assigned to AA (then the Jackson Generals).
Perdomo has been a top prospect for some time now. He’s been an MLB Top-100 prospect (and fallen off after his 2021 struggles).