Joe Girardi said in his post-game press conference that some of the tests run on Phil Hughes show that the right-hander may have a low-level amount (is that the right word? not sure how to phrase it) of thoracic outlet syndrome. Hughes will go to St. Louis to see a specialist who will determine a) if he has it, and b) the necessary treatment. I’m not a doctor (Girardi said it was a circulation problem), so I have no idea what the hell that means. I do know this: Jeremy Bonderman had thoracic outlet syndrome in 2008, and he was never the same again.
Update: Some other players that have had it: Matt Harrison, Noah Lowry, Kenny rogers, and Jarrod Saltalamacchia.
Update Part Deux: Turns out someone I know has TOS, didn’t even know they had it. It’s basically a “cluster of pinched nerves,” and the recovery time depends on the severity. It could have been caused by something like a herniated disc, for example. My buddy had to stop bowling, which is obviously a lot less strenuous than throwing a baseball in the big leagues.