Getty San Francisco 49ers QB Brock Purdy The San Francisco 49ers had to make the trip to Green Bay with Brock Purdy injured, but they took an unusual step beforehand. Purdy has been dealing with a shoulder injury this past week and was ruled out on Friday before the battle with the Packers . While he underwent a typical MRI early in the week, FOX Sports insider Jay Glazer revealed that the team had him undergo a second MRI afterward. “Tuesday, Wednesday, practice. They thought he was tracking