Rafael Nadal returns to the top of the world rankings for the first time since 2011 after China Open win " (This is) a great year, one of the best years of my career without any doubt," said the Spaniard. (It) sure is special be back to the top position of the rankings after more than a half year without playing tennis. Since his comeback in February, the Spaniard has won 10 titles from 12 finals, including the French Open and US Open. Nadal's last spell as world No 1 lasted 56 weeks before he was replaced at the summit by Novak Djokovic in July 2011. The China Open semi-final victory extended his winning run to 21 matches and another win on Sunday will give him his first China Open title since 2005. " (It) will be a great finish (to) the season if I am able to finish the season (at) the No 1 spot," he added. For that, I am sure I need to win more matches if I want to be there.