The Diamondbacks have selected the contract of right-hander Randall Delgado from Triple-A, as per a team press release. In a corresponding move, righty Clay Buchholz has been placed on the disabled list with a flexor mass strain in his throwing elbow, an injury we learned last night will end his 2018 season.
Delgado will make his return to Arizona’s big league roster after a turbulent season. He missed the first three months with an oblique injury, only to post a 5.14 ERA over seven innings in relief work, and then get designated for assignment in late July. That DFA placement led to Delgado being released entirely, only for the D’Backs to re-sign him to a minor league contract in late August.
It was quite the unwelcome turn of events for a pitcher who was one of the most valuable members of Arizona’s roster in 2017, when Delgado posted a 3.59 ERA, 8.6 K/9, and 4.29 K/BB rate over 62 2/3 innings working as a swingman (five starts and 21 relief appearances). Delgado’s durability also led to 147 innings in 2015-16 working almost exclusively as a reliever.
In five games and 9 2/3 innings for Triple-A Reno, Delgado seemed to be in good form, allowing just a single run and recording seven strikeouts against just one walk. It seems likely that the D’Backs will again use Delgado as a multi-inning weapon out of the bullpen, as they try to patch holes in both their rotation and bullpen while fighting to remain in the NL playoff race. The Diamondbacks have just seven wins in their last 21 games, putting them 3.5 games out of first place in the NL West and three games back of a wild card slot.