Oh dear I've just read it as well 
I think I'm in denial about how emotional its going to be (I was an emotional wreck when Roger and Andy retired)
I'm not even sure if Rafa will be playing today? Maybe in the doubles at least? I think the players are announced an hour before play starts
Annoyingly GB women will be playing their semi at the same time I think (I'm still not really sure how I'm going to watch the Davis Cup)
Also we have snow so at least I've got a good excuse for staying home and watching tennis!