NFL Week 15 Saturday grades: Bengals earn ‘B+’ for overtime win, Vikings get ‘D’ for late-game collapse | CBS Sports Headlines NFL Week 15 Saturday grades: Bengals earn ‘B+’ for overtime win, Vikings get ‘D’ for late-game collapse Here are the Week 15 grades for every NFL team that played … Continue reading NFL Week 15 Saturday grades: Bengals earn ‘B+’ for overtime win, Vikings get ‘D’ for late-game collapse