LAKE FOREST, Ill. — See Tarik Cohen in practice; understand the concept of kinetic energy.
He darts and dashes, a rabbit on Red Bull. During warm-ups, a backflip, just to stretch the back. His mouth is running, rapping, roasting. Give him the ball, his legs move faster than the eye. The play ends, he sprints to the end zone. On the sideline, he dances.
The Bears use a GPS system from Catapult that monitors the exertion of their players during practice. He consistently scores the highest on the team, according to coach John Fox.