Aaron Nola's season is officially over.
The Phillies on Wednesday transferred the right-hander to the 60-day disabled list, as general manager Matt Klentak said pregame that Nola will not pitch again in 2016.
Nola, out since Aug. 3 with a right elbow strain, saw Dr. James Andrews and was diagnosed with a sprained ulnar collateral ligament and a mild flexor strain.
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The 23-year-old's move to the 60-day DL opens a 40-man roster spot for right-handed reliever Frank Herrmann, called up from Triple A with lefty Elvis Araujo optioned to the IronPigs.
Nola, the Phillies' 2014 first-round pick, finished 6-9 with a 4.78 ERA in 20 starts. He went 1-5 with a 9.82 ERA and an opponents' batting average of .367 over his final eight outings.
Araujo had a disastrous outing Tuesday night, putting six of the seven batters he faced on base and allowing six runs in one-third of an inning. With the bases loaded, Araujo hit one batter and walked two more. His ERA rose from 5.00 to 6.91.
Herrmann, 32, pitched well for Lehigh Valley, going 6-1 with a 1.72 ERA in 27 appearances. He struck out 31 batters and walked six in 31⅓ innings.
A Harvard alum, Herrmann has not pitched in the majors since 2012. He made 95 appearances from 2010 to 2012 with the Indians.
CSNPhilly.com's Jordan Hall contributed to this story.