Miller went on the 15-day disabled list on May 27 with a right index finger sprain. Prior to that, the 25-year-old had been a disappointment for Arizona, going 1-6 with a 7.09 ERA in 10 outings, only one of which was a quality start. Miller made his first rehab start for Class A Advanced Visalia on Thursday. He pitched six scoreless innings, allowing two hits with 11 strikeouts and no walks.
"You're facing A-ball guys, so you can't really base too much off of what you do, but moreso past the numbers was how I felt, and I felt good mechanically," Miller said. "Everything felt a little bit smoother and simpler."
Hale said Miller will likely be pitching for Visalia again in his next rehab start.
The D-backs traded a package that included last year's No. 1 overall pick Dansby Swanson to Atlanta in the offseason to acquire Miller. But he has not looked like the starter who posted a 3.33 ERA in three seasons with the Cardinals and a career-best 3.02 mark with the Braves in 2015.
"Hopefully I'm back as soon as possible, I'm ready to help this team win however I can, I want to get back into the rotation and start pitching like I know I can," Miller said. "I'm ready to start pitching in some games. For what it's worth, I can go out on another rehab start and get one under my belt there, but mentally and physically I feel ready to perform here and start winning games here."
Jake Rill is a reporter for MLB.com based in Phoenix. This story was not subject to the approval of Major League Baseball or its clubs.