Football can be so stunningly unbelievable, when it is played like this, that people use the phrase: "There are no words!" But there are. They tumble out of you, but it is how to pack in all the visual images and in which order to put them.Lionel Messi running in the opposite direction to his team-mates when the definitive, sixth, goal went in and leaping up on to the wall behind the goal to celebrate, without any trace of restraint, in the arms of dozens of Barcelona supporters after the Liga leaders had overturned a 4-0 first-leg deficit.