Rafael Nadal said he was 'playing well enough to have a positive result' at the Australian Open despite having lost in the final of the Qatar Open.Not only did it increase the feeling that Nadal's Australian Open title will go the way of the French Open and Wimbledon crowns that he relinquished in 2009, but it heightened the question of whether the 23-year-old Spaniard with the dodgy knees can ev