I am trying to feed on the confidence that I have . '' Novak also became the ninth man to spend at least five weeks at No . 1 . Djokovic achieved the top ranking in July 2011 and has been mostly No . 1 ever since . But he is now in danger of losing the No . 1 ranking to a surging Fernando González . Djokovic and Nadal are competing at next week 's China Open in Beijing .
Novak also became the ninth man to spend at least five weeks at No . 1 . Djokovic achieved the top ranking in July 2011 and has been mostly No . 1 ever since . But he is now in danger of losing the No . 1 ranking to a surging Fernando González . Djokovic and Nadal are competing at next week 's China Open in Beijing .