The A's have released a statement saying that while his condition has improved it is still "life threatening."
http://espn.go.com/mlb/story/_/id/83...ning-situation
I am sure I am just reiterating what others have said but when I saw he walked off the mound under his own power I thought he had "ONLY" a concussion. I was stunned when I saw he had emergency brain surgery. I really hope he comes through this okay.