(AP Photo/AJ Mast)INDIANAPOLIS – Lamar Jackson fast-tracked the Baltimore Ravens' latest record-breaking achievement. He opened the second half with an up-tempo game plan that got Indianapolis' defense out of sync. After punting on their first five possessions and watching the defense score the Ravens' only points of the first half, Jackson switched it up. “I’m glad we did," Harbaugh said when asked about going fast in the second half. Linebackers Darius Leonard and Anthony Walker also were injured in the second half.