The news was first reported by Brendan Kuty of NJ.com:
Domingo German shut down for two weeks with ulnar nerve … irritation? I forget the term. But it's not a UCL tear. #Yankees
— Brendan Kuty (@BrendanKutyNJ) March 4, 2016
Keep in mind that while Kuty confirmed it’s not a UCL-tear, the injury still raises quite a bit of concern over the 23-year old Domingo German.
After the Yankees acquired German as part of the Nathan Eovaldi trade in December 2014, they had some high hopes for the Dominican pitcher.