The Rules of the Game by Pierluigi Collina-
“The Walk to the pich is a moment when you meet people- players, managers, staff. Greetings, handshakes, and a few comments are exchanged. Sometimes you see much hugging between former team-mates who are particularly pleased to see each other again. Then you see the same two out on the pitch going hell for leather as they fight for the ball.”
I see this a lot during high school season, players that have played club ball together for years are now lining up across from each other for their respected high school teams. This is always a little funny to me but is a true example of compitition.