Lee (biceps/shoulder) will begin a rehab assignment Saturday with Triple-A St. Paul, Do-Hyoung Park of MLB.com reports.
Lee has been dealing with right biceps tendinitis and some soreness in his right shoulder throughout August and has been on the injured list since Aug. 9. He received a cortisone shot for the biceps tendinitis shortly after going on the shelf and is now ready to begin a rehab assignment. The 23-year-old has slashed .253/.309/.333 with two home runs and three stolen bases across 110 plate appearances with the Twins.