Ravens quarterback Lamar Jackson will not play in Week 5 and could be facing a longer absence because of a hamstring injury, the Baltimore Sun reported Tuesday. Jackson left the Ravens’ loss to the Kansas City Chiefs in the fourth quarter on Sunday. The Ravens (1-3) play the Houston Texans (1-3) this week with a roster besieged by injuries. “There was no way he was going to go back into the game,” Harbaugh said. That’s how he is.”Without Jackson against the Texans, the Ravens are expected to turn to Cooper Rush.