49ers defensive tackle Hassan Ridgeway left Sunday’s game against the Dolphins in the fourth quarter. The team later announced Ridgeway injured a pectoral muscle. Coach Kyle Shanahan updated Ridgeway’s condition Monday. “Hassan Ridgeway, he has a pec strain,” Shanahan said, via David Bonilla of 49erswebzone.com. “Surgery is not needed, but he’ll be out for a [more]