The Arizona Diamondbacks reinstated LHP T.J. McFarland from the 10-day disabled list (left ankle contusion) and placed RHP Taijuan Walker on the 10-day disabled list, retroactive to May 20, with a blister on his right index finger. McFarland, 27, is 1-0 with a 1.59 ERA (1 ER in 5.2 IP) in 5 appearances with the D-backs this season. Walker, 24, is 4-3 with a 3.46 ERA (20 ER in 52.0 IP) in 9 starts for Arizona this season.
This came out of nowhere, and Walker seemed to be fine earlier this series, tossing six shutout innings against the Padres on Friday night. But wwe had already noted that Walker did seem to have had trouble with his control this month, walking almost as many people as he had struck out in May. GM Mike Hazen didn’t appear to consider the injury series: "I don't think it's going to be that long. This is something he's been dealing with for a few weeks now, and while it was making some progress start to start, it's still something that he's been managing through."
There’s no word who will start for the team on Wednesday afternoon, which would be Walker’s scheduled start. Perhaps the long outing of Randall Delgado, who got a save for throwing three innings after Walker on Friday, could indicate he was being stretched out as a result of this move? Alternatively, Braden Shipley, the other starter used by the D-backs already this year, could be called up for a spot outing.