The News Minute | September 8, 2014 | 08:04 am ISTNew York: Serena Williams beat Caroline Wozniacki in straight sets to win her sixth US Open and 18th Grand Slam title Sunday, BBC reported.The World No.1 American won 6-3 6-3 at Flushing Meadows in New York.The victory moves Williams to joint-fourth in the all-time list of major winners, alongside Martina Navratilova and Chris Evert.With IANS