SAF is getting better and has been sitting and talking to relatives. Sounds to me he will get through this brain surgery. Great news!
From your description sounds like it might have been a diurnal (sp?) hematoma. If it was they didn't actually have to do "brain surgery" just drill enough holes to drain the blood. I hope that was the case because it means a complete recovery is very likely. My dad went through a similar episode complicated by them giving him some heparin shortly after the surgery when he went on dialysis. Necessitating some more drilling. In spite of that he made a complete recovery.
It is great to hear that he is recovering. He is such a figurehead for the game. The game seems to be missing something without him.