Hummel's contract was selected by the Diamondbacks on Friday.
Hummel was traded from the Brewers to the Diamondbacks in late July, and he'll now be protected from the Rule 5 draft. He slashed .311/.432/.546 with 12 home runs, 70 runs, 52 RBI and four stolen bases at the Triple-A level in 2021, and he'll likely be in the mix to make his big-league debut next year.