Texas high-school junior Demontrai Lewis is a defensive end for his school's varsity football team. Lewis says he relies on vibrations to trigger his instincts to take action on the defensive line. He hopes to continue playing the sport in college, and his dedication helps inspire his teammates. "I see him, his struggles and what he has to do to be a good football player, and I use it as motivation to be even better," senior Tomme Mark said. Houston Chronicle