"It went awesome," Fien said. "I let it go a little bit. Threw 30 pitches. I threw everything. Since I've been playing catch I've been throwing everything just to make sure everything feels good. So everything went well and we have a plan now."
Outfielder Oswaldo Arcia, on the DL with a right hip flexor strain since May 4, has been swinging in the cages, but isn't quite ready to take live batting practice.
"He's running, and swinging in the cages and so forth," Twins general manager Terry Ryan said. "The next step is to get him on the field, which will be this week."
Reliever Tim Stauffer, who has been on the 15-day DL with a right intercostal strain since May 1, was scheduled to throw three innings in a rehab appearance with Triple-A Rochester on Sunday, but lasted just 1 1/3 innings. Stauffer gave up two runs on four hits and two walks. The Twins are still deciding the next step for Stauffer.
Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, follow him on Twitter @RhettBollinger and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.