David Beckham's poor form at the UEFA Euro 2004 Championships was down to abnormally high stress levels. Apparently in the run up to the championships he had started a new tiger jigsaw puzzle, he was finding it hard to complete and he was staying up late to try and finish it. As the championships started he still could not finish the jigsaw and it was obviously bothering him and affecting his performances on the pitch.
After a week of scientific research, the doctors had come to the conclusion that he should just shut up and eat the frosties