Australian Open draw: Rafael Nadal begins title defense with tough test in opening round - Rafael Nadal shares emotional tribute as old rival joins him in retirement - Rafael Nadal shares heartbreaking reality of life in retirement after rare appearance - Rafael Nadal claims he 'physically harmed' himself competing with Federer and Djokovic - Rafael Nadal rises ATP rankings despite retiring from tennis two months ago - Rafael Nadal's uncle weighs in on controversial Novak Djokovic 'injury' conspiracies - Matteo Berrettini has nine-word message for Rafael Nadal after beating Cam Norrie - Novak Djokovic stands alone at the Australian Open now that Rafael Nadal and Roger Federer retired - Rafael Nadal says he thought about taking a mental health break a few years ago - 'I was a ball girl for Rafael Nadal and he wasn't happy with me' - EXCLUSIVE