Federer 37 winner of five consecutive US Open will have as next opponent Frenchman Benoit Paire who defeated Austrian Dennis Novak 7-6 (6) 3-6 7-5 and 7-6 (5) reports Efe news agency.
The duel between Federer and Paire will be their seventh as professionals with a 6-0 advantage for the former world number one.
--IANS ajb/in