PHOENIX -- D-backs right-hander Shelby Miller had successful Tommy John surgery, performed by Dr. Neal ElAttrache in Los Angeles, on Wednesday.
"Everything went fantastic, and he's doing fine and resting comfortably," manager Torey Lovullo said.
Miller suffered a tear in his ulnar collateral ligament on April 23. After getting three different opinions, Miller elected to undergo surgery, rather than try rest and rehabilitation.
Miller is expected to miss the next 15 months.