Diamondbacks DFA Thyago Vieira to make room for A.J. Puk

New Arizona Diamondbacks relief pitcher A.J. Puk joined the team on Saturday before a game against the Pittsburgh Pirates. To make room on the active roster, Arizona designated for assignment Thyago Vieira. The D-backs had designated left-hander Joe Jacques for assignment on Thursday to create a 40-man roster spot. The D-backs claimed Vieira from the Baltimore Orioles on June 6, and he has been a lower leverage reliever in the bullpen since.