Fourteen weeks before the Mendes fight I tore 80 per cent of my ACL [anterior cruciate ligament]. That is the main ligament for stability. Every day in that training camp when I was working my way back, I was saying "real champions fight through any adversity". That is why I am a real champion and he is not. Look at my eye [he had seven stitches put in an old wound after an injury in training the night before we met]. Fighters fight on. Aldo got scared, he went running and I worry he will run again.