The Diamondbacks selected Pop with the sixth pick of the Rule 5 draft.
Pop was originally drafted by the Dodgers and was traded to Baltimore in the Manny Machado trade. He had Tommy John surgery in May of 2019 and could touch 100 mph with his fastball prior to the surgery. This past September, Pop was back to "full go," so he should head to spring training without restrictions. The Diamondbacks will likely ease him back in low-leverage situations out of the bullpen in 2021.