( CNN ) -- `` I 'm not a machine , and like everybody I have better moments than others , '' Rafael Nadal told CNN in Shanghai . 23-year-old Spanish tennis player lost his Number 1 ranking this year . Started season with win at Australian Open , but year disrupted by injuries . Score: 6
23-year-old Spanish tennis player lost his Number 1 ranking this year . Started season with win at Australian Open , but year disrupted by injuries . Score: 6