Chatwood signed a minor-league contract with Arizona on Monday.
Chatwood was cut loose from his previous MiLB deal with the Pirates, making seven appearances for Single-A Bradenton (4.91 ERA with four strikeouts and six walks) and two for Triple-A Indianapolis (one hit and two walks allowed over 2.2 scoreless frames). The 33-year-old was assigned to the Arizona Complex League after putting pen to paper on his latest contract.