San Francisco 49ers quarterback Christian Ponder (5) is chased by San Diego Chargers defensive tackle Kamal Johnson (66) as he crosses the goal line on a five yard touchdown run that gives the Niners a 24-21 fourth quarter lead during the 2016 NFL preseason football game against the San Diego Chargers on Thursday, Sept. 1, 2016 in San Diego. The 49ers won the game 31-21. (&copy;Paul Anthony Spinelli)