After being examined by the Rays’ team doctor, Niemann will get a second opinion tomorrow in Texas with the Rangers team doctor. That doctor has operated on Niemann previously.
Nobody will say exactly what is wrong with Niemann’s shoulder. However, Niemann did say that “there’s a lot of bad-case scenarios out there.”
This would also explain why teams showed almost no interest in Niemann this spring. The signs were there that something was wrong, and other teams were likely scared away.