It is late and I am not feeling like looking it up right now, but my first thought is how does the team rank for wild pitches and passed balls? Like others have said, if Severino is going to mess up, just wait for that and take the base. As much as it pains me to semi complement Severino, he has improved throughout the season. There was really no way to be worse than he was, so being ok is a complete turnaround from one of the worst catchers I have ever had to watch isn’t something to be proud of. That said, he hasn’t improved enough for me to ever want to see him play for the Os again after this season.
Not a dr but am always volunteering to play one at home. TJ is strictly elbow ligaments and shoulder usually involves the cuff. Elbow ligaments are common now and pretty recoverable. Shoulder is not so good and poor recovery. I am not saying Wells has a career ending shoulder injury, I am just answering elbow vs shoulder.
*Forearm discomfort can also be related to elbow. Put your arm at 90 degrees with your hand up and feel your elbow. The crevice in you elbow has a ligament. If you follow that straight up, you will feel it end in your forearm.