Worth noting

• The Twins released left-handed reliever Rafael Perez, who had shoulder surgery in September and signed with the club as a Minor League free agent on Feb. 14. Perez wasn't showing enough arm strength at Triple-A Rochester, so the Twins decided to cut ties. The 31-year-old posted a 2.25 ERA with two strikeouts and three walks in four innings with Rochester.

"It didn't look like he was going to be ready to come up here and help us," Antony said. "We just decided rather than continuing on with that, that we'd let him go and try to sign with someone else."

• Right-hander Tim Wood, who is on the 15-day disabled list with a right rotator cuff strain, had an MRI exam on his shoulder in Rochester, N.Y., on Wednesday. The initial prognosis was right biceps tendinitis, but team doctors took another look at Wood on Friday just to make sure and will know more on Saturday. Wood, who is out of Minor League options, had a 6.75 ERA in seven appearances with Triple-A Rochester on a rehab assignment before feeling the discomfort in his right biceps. He'll start a new rehab assignment once he's ready to pitch again.

• Right-hander Rich Harden's rehab from right shoulder surgery is coming along slowly. Harden, who signed a Minor League deal, threw batting practice this week and felt discomfort in his shoulder, said Antony.

"It's not going very well to be honest with you," Antony said. "We've backed him off a little bit and it's just a work in progress. We'll see where it goes from there."

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.