I don’t know what it is either, but the good news is that it can be treated with with some good old fashioned drugs. PeteAbe has the news (3:50pm update). Kennedy left Monday’s start with numbess in one of his fingers on his pitching hand, and was sent to New York for tests. The wiki entry makes it sound really bad, but the Yanks say IPK will have a follow up appointment with the doctor on Monday and could resume throwing soon thereafter. Let’s all wish him a safe and speedy recovery.