NEW YORK - Roger Federer insists that he will return to the US Open in 2016 despite losing Sunday’s final 6-4, 5-7, 6-4, 6-4 to Novak Djokovic. Federer, who will be 35 next year, won his last title of five in New York back in 2008. But at the presentation ceremony, he had no intention of following women’s champion Flavia Pennetta by announcing his retirement. “I’m very pleased with where my game is at,” said Federer, who won the most recent of his 17 majors at Wimbledon in 2012. “It feels like it has moved in the right direction. I’m back in the final for the first time since 2009. I love the sport. I’ve got a lot of passion. “One last thing — I’ll see you guys next year.” Federer was bidding to become the oldest champion in New York since 35-year-old Ken Rosewall in 1970.