"I surprised myself on that one," Polk said. "I just had to go out there and make a play. I just wanted to help our team win."
The 5-foot-11, 222-pound Polk has three touchdowns on just 11 carries in 2013. A warrior of a running back, Polk can tote the rock, deliver a block and make a tackle. Which of the three is Polk's favorite to do?
"I would say tackle because big blocks and touchdowns they expect me to get," Polk said. "I'm not known for being a tackler."