English Premier League
Photo: Arsene Wenger and Jose Mourinho got at it on the sidelines (AP)
A never ending beef
It is not surprising that one of the most watched and glamorous sports in the world produced a rivalry with all the elements to make it the key component of a Hollywood movie. It’s not difficult to see why either – in the space of a few years the story saw friends turned into bitter enemies and there is never a 'kiss and make up' to end the rivalry.