NFL Week 4 grades: 49ers earn 'A' for dominating win over Rams; Ravens get 'D' for blowing big lead vs. Bills | CBS Sports Headlines NFL Week 4 grades: 49ers earn 'A' for dominating win over Rams; Ravens get 'D' for blowing big lead vs. Bills Here are the Week … Continue reading NFL Week 4 grades: 49ers earn 'A' for dominating win over Rams; Ravens get 'D' for blowing big lead vs. Bills