One of the traits of top footballers in the modern game is that their teammates are pretty much - and keep in mind these are already some of the best players in

One of the traits of top footballers in the modern game is that their teammates are pretty much - and keep in mind these are already some of the best players in the world by a long way - in disbelief of how hard and how efficiently they train. That's how Cristiano Ronaldo is as good as he is at an age when many have already retired.