Initial Grades from Pro Football Focus have been released for the Baltimore Ravens following their Week 2 loss against the Miami Dolphins, 42-38. According to PFF, the Ravens particularly struggled with tackling, as six defenders received grades under 30. Defense Tackling Grades DE Brent Urban — 20.9 LB Malik Harrison — 25.2 DT Broderick Washington — 25.4 DE Justin Madubuike — 28.2 CB Jalyn Armour-Davis — 28.4 LB Patrick Queen — 29.0 PFF also graded four defenders under 50 for their coverage grades. Coverage Grades CB Armour-Davis — 29.4 LB Queen — 35.1 CB Marcus Peters — 44.2 OLB Odafe…