The Baltimore Sun's Mike Preston revealed his grades for the Ravens' heart-stopping 19 to 17 win over the Detroit Lions on Monday Morning Quarterback. Obviously, fans will remember this game for years to come, but the glory of Justin Tucker's NFL-record-setting kick may mask what was a very uneven game for the Ravens. That said, there were two A's handed out by the Professor. Find out who impressed and who needs to hit the books on this edition of Monday Morning Quarterback.