#4 Clumsy Chelsea handed further embarrassment by Corinthians
With their 2012 Champions League victory being deemed fortuitous and a result of ugly playing, Chelsea were humiliated by Atletico Madrid in the 4-1 defeat in the UEFA Supercup, before bowing out in the group stages of the Champions League to become the first defending champions with such an unwanted record.
Rafael Benitez was soon roped in to steer the sinking ship, and although he did end up guiding Chelsea to their first Europa League success, it wasn't before the embarrassment at the Club World Cup.
Chelsea, defeating Monterrey 3-1 in the semi-finals, were cleverly outsmarted by a Corinthians side who were repressed for large parts of the game by the mighty Blues who seemed to have their numbers.
A defensive muddle during a set-piece, however, resulted in a goal for the Brazilians as Guerrero made a meal of the acres of space left behind and comfortably headed in a goal that proved to be enough eventually.
Chelsea were left ashen-faced as they ran completely out of luck they so merrily rode the season before.
After Liverpool in 2005 and Barcelona a year later, the Blues joined the unwanted league of Europe's big boys who slipped to Brazil's supposed minnows.