Roger Federer will try to win the Davis Cup in tennis this weekend. He’s a great player from Switzerland who has performed on top level for a very long time. How does he keep that good? And what characteristics of him would be useful for referees too? I’ve pointed out 3 Roger Federer characteristics referees should have too. 1. Working extremly hard Federer is training hours. Long days on the tennis court. It requires great effort to do what he does during practice. That’s what referees should demand from themselves. Go to your RA’s training sessions. Rainy day? Go! Long day at work? Go! That hard work will pay out…