Twins manager Ron Gardenhire said Saturday that Francisco Liriano underwent an MRI on his left shoulder recently and the team was able to get the results for its doctors to look over. Twins physician Dr. Dan Buss checked out Liriano's MRI and found no structural damage. Liriano didn't throw again on Saturday, but he said he'll be re-examined by doctors Sunday and start playing catch in "probably two more days."