"It was a positive because he didn't have any setbacks," assistant general manager Rob Antony said. "He worked hard to come back healthy. Right now, we just don't think he's ready to help us, but he's healthy, so we didn't want to keep him on the DL so we optioned him. I think he understood and everything is fine."
The 28-year-old combined to post a 6.23 ERA in those three starts with nine strikeouts and three walks in 13 innings. His last outing came with Rochester on Wednesday, and he gave up six runs on 11 hits over four innings.
De Vries will remain in Rochester's rotation and could be called up if the Twins need a starting pitcher. The Minnesota native had a 4.11 ERA with 58 strikeouts and 18 walks in 87 2/3 innings as a rookie last year.
Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, and follow him on Twitter @RhettBollinger. This story was not subject to the approval of Major League Baseball or its clubs.