Well, I don't really understand the mechanics of shoulder injuries, but the words that seem to go along with career threatening shoulder injuries (rotator cuff, labrum) do not seem to be associated with Soroka at this point.
The baseball america article referenced muscular issues, but no structural damage. Cartilage and ligaments are harder to repair than muscle, but I would guess that a muscular imbalance could lead to structural damage later. I have no idea what the regimen of strengthening other muscles to obtain a better advance would add to that prognosis but that seems to be what he's been working on.
I think downplaying Sixto's injury history is questionable. He's super young, throwing super hard, and he's had almost immediate injury trouble in his career.
But they very well may be similar values. Sixto seems to have better stuff and I've never been huge on Soroka.
I don't think the Phillies are much more likely to part with a 60 guy for Realmuto than anyone else though.
OK, then let me educate you.
https://www.baseballamerica.com/stories/now-healthy-mike-soroka-remains-confident-heading-into-2019/
"Once the problem was properly diagnosed as shoulder inflammation in his subscap muscle"
The rotator cuff consists of the supraspinatus, infraspinatus, subscapularis and teres minor muscles.
The subscap is responsible for stopping the humerus (upper arm bone) from coming out of the shoulder socket when forced forward...aka throwing a baseball.
As I said, shoulder issues are the scariest injuries for pitchers, and it isn't even close.
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