Yellow

Apparently the Spanish manager Luis Aragones is a follower of kabbalah and believes yellow to be an unlucky colour, shouting at Raul to remove a yellow surf style shirt, when he turned up at a meeting in said colour. Aragones' fear of yellow is so strong that he once ordered a set of training cones in the offending shade to be replaced with red ones. Unfortunately for Aragones,
Spain are in line to play Brazil in the quarter-finals of the World Cup.