The Twins placed Lee on the 10-day injured list Friday with right biceps tendinitis, Do-Hyoung Park of MLB.com reports.
Lee recently missed some time with what had been referred to as right shoulder soreness, but there's now a different diagnosis and it's an injury bad enough to sideline him at least for the next 10 days. The rookie had seen most of his playing time of late at shortstop while Carlos Correa (heel) was out, but that job now should go to Willi Castro, with Austin Martin and Kyle Farmer mixing in at second base.