Federer and Djokovic earn third round spots

Roger Federer, of Switzerland, serves to Benoit Paire, of France, during the second round of the U.S. Open [Courtesy]

Roger Federer on Thursday set-up a US Open third round clash against Nick Kyrgios who found himself at the centre of an impartiality row after an umpire climbed down from his chair to tell him: "I want to help you".

Second seed and five-time champion Federer, 37, made it 18 wins in 18 second round appearances in New York by seeing off error-plagued Frenchman Benoit Paire 7-5, 6-4, 6-4.