Roger Federer easily reaches US Open's 4th round"I like it like this, you know," Federer said with a smile. "I like three hours, five hours, too - as long as I end up winning them."SI Staff|Share on FacebookShare on XAdd us as a preferred sourceRoger Federer easily reaches US Open's 4th round "I like it like this, you know," Federer said with a smile. "I like three hours, five hours, too - as long as I end up winning them." Add us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Sep 1, 2013 | Modified Sep 1, 2013SI STAFFShare on FacebookShare on XHome/Tennis