PARIS - With an opening-round loss, poor fitness and a father reportedly ill in a Serbian hospital with respiratory problems, Novak Djokovic on Wednesday appeared to be slightly unsure of his immediate tennis future.With five days to go before the start of the year-end World Tour Finals in London for which he has already qualified, the Serb was still absorbing a 0-6, 7-6 (7/5), 6-4 second-round defeat against journeyman American Sam Querrey at the Paris Masters.While refusing specifically to react to reports on his father’s situation, Djokovic did admit that he has not himself been the picture of health. "I’ve not been feeling very good the last few days,” he said.Reports from Serbia suggest that Djokovic made a quick visit home to see his father this week, something the world No 2 refused to address.He also seemed to leave at least some of his intentions concerning London open to speculation."Now that I’m done with the tournament, I will sit down with the team and see what’s the best thing to do before London,” said the ousted second seed."The way I feel, I definitely need a few days’ rest, and then try to get a few days’ practice before the tournament starts.”Roger Federer pulled out of defending his title here in Paris after losing the Basle final at the weekend, in order to be fresh for London even after winning Basle, Paris and London - three concluding events over four weeks - in 2011.