Lamar Jackson injury update: Ravens QB exits game with hamstring issueShow Caption Hide Caption Super Bowl MVP Nick Foles gives advice to backup QB's in the league Super Bowl MVP Nick Foles shares advice to today’s backup quarterbacks on what it takes to be successful when your number is called. Sports SeriouslyLamar Jackson has exited the Baltimore Ravens' Week 4 game against the Kansas City Chiefs due to a hamstring injury. Backup quarterback Cooper Rush took the field with 56 seconds left in the third quarter and the Ravens trailing 30-13. The Ravens announced Jackson was "questionable" to return because of a hamstring injury. Jackson was seen standing on the sidelines after exiting the game.