The world of sport has changed. Once upon a time you could be the biggest or the strongest, the most skilful or the quickest, but these days things are very different. There’s a reason the likes of Liverpool’s Jürgen Klopp refers to his team as “mentality monsters”, because right now you have to be able to cope with so much pressure – and when the chips are down, the desire, the want to win can be the thing that gets your across the finish line.