Knowshon Moreno does obstacle course crawl to signal first down (GIF)

Knowshon Moreno's game at Arrowhead Stadium Sunday started with a bizarre moment when he shed the biggest tear drops known to mankind (bottom GIF) during the national anthem.

Later, the Bronco running back's less strange, but still intense behavior would continue. After going 31 yards —half of it with a pile of Chiefs players on his back — Moreno found himself on the ground under a scrum of scuffling players from either side. And he signaled a first down in the only way possible — like a grunt crawling under barbed wire on an obstacle course.

All and all, an interesting day for the former New Jersey high school star.