NEW YORK - Rafael Nadal and Novak Djokovic admitted Monday that they miss old sparring partner Roger Federer who was forced to skip the US Open for the first time since 1999. Federer, the winner of a record 17 majors and a five-time champion in New York, shut down his season to rest a knee injury. "Roger today is having the same injury issues, so I wish him a fast recovery," Nadal said. "It is very tough to see the players outside of the tour. The fans miss the players, the tour needs the players," added the Spaniard. World number one Djokovic also felt sympathy for the Swiss. "It's not the same when you don't have Roger for the tournament, for the fans. He's been one of the most popular players of all time, one of the most successful players of all time," said the Serb.