Serena's U.S. Open victory confirms lack of contemporary competitionWERTHEIM: Fifty parting thoughts from the 2013 U.S. OpenBruce Jenkins|Share on FacebookShare on XAdd us as a preferred sourceSerena's U.S. Open victory confirms lack of contemporary competitionSerena Williams only lost one set -- to Victoria Azarenka in the final -- en route to her U.S. Open title :: Mike Stobe/Getty ImagesWERTHEIM: Fifty parting thoughts from the 2013 U.S. OpenAdd us as a preferred source on GoogleFollowPublished Sep 10, 2013 | Modified Sep 10, 2013BRUCE JENKINSShare on FacebookShare on XHome/Tennis