"Some Dortmund players were so affected they could not sleep after hearing Götze’s news. “That’s the truth,” Klopp concedes. “I called six or seven players who I knew were damaged in the heart. They thought they were not good enough – and they wanted to win together. That’s the reason it hurt them so much. But Bayern told Mario: ‘It’s now or never.’ I told him they will come next year. They will come in two years, and then three years. But he’s 20 and he thought: ‘I must go.’ I know how difficult it will be to find a player to replace Götze but, next year, we will play differently. It just takes time."