49ers Blog and Q&A: Smith has grade three separation

The MRI results are in: Alex Smith has a grade 3 separation to his right shoulder and has been ruled out for Sunday's game. The best case scaneraio, Mike Nolan said minutes ago, is that his quarterback returns for the Oct. 21 game against the New York Giants. Nolan said that surgery is not required. I'm told that we will get to talk with Smith later in the day, at which point I'll know more details about his injury. Nolan also said he would meet with Scot McCloughan today about the possibility of adding another quarterback to the roster while Smith is out.