A scary moment occurred in the first quarter of Thursday night's game between the San Diego Chargers and San Francisco 49ers. During a 49ers punt return, Chargers running back Mike Tolbert lost his helmet, but still tried to chase down returner Ted Ginn Jr. The 25-year-old attempted to make a tackle, but got crushed by a blocker as Ginn ran away. Fortunately, Tolbert got up and appeared to be okay. He even scored a 1-yard touchdown later in the third quarter, helping the Chargers dominate the 49ers 34-7. Scroll down to watch the video.