That's smart football. That's how he's capable of crazy outbursts where he takes on several defenders and makes a big exhausting run and still being able to cap it off in a concentrated, accurate shot. Actions like those take A LOT of energy. Have you never played the game at a compe ive level? My dad always taught me this as a young kid, to use your energy in the game wisely, you can't always run around like a mad man, you have to time your runs, and know how to make smart decisions like NOT running/sprinting and exhausting your energy when you're not going to reach the ball, for example.