World No . 1 Novak Djokovic into the second round of the Dubai Tennis Championships . ` But I am not thinking about it or trying to better the one I had in 2011 , because it 's really hard to ask from myself something which may be impossible . ` The Serbian has been on a tear since his first Grand Slam appearance in New York last year and is now ranked world number one after beating Roger Federer 6-4 6-3 at Flushing Meadows. The 25-year-old won three consecutive titles in Dubai between 2009 and 2011 . Juan Martin del Potro saves three match points in victory over Marcos Baghdatis .
World No . 1 Novak Djokovic into the second round of the Dubai Tennis Championships . The Serbian has been on a tear since his first Grand Slam appearance in New York last year and is now ranked world number one after beating Roger Federer 6-4 6-3 at Flushing Meadows. The 25-year-old won three consecutive titles in Dubai between 2009 and 2011 . Juan Martin del Potro saves three match points in victory over Marcos Baghdatis .