Stosur , whose run to the final included a marathon third-round victory over Nadia Petrova that lasted a tournament record three hours and 16 minutes , continued : `` Serena , you are a fantastic player , great champion and have done wonders for our sport . ` Samantha Stosur is the new U.S. Open champion after beating Serena Williams . The Australian proves too strong for favorite Williams , winning 6 - 2 6 - 3 in 45 minutes . Williams loses her cool after being disqualified for ` ` intentional hindrance '' It is Stosur 's first Grand Slam success in her second major tournament final .
Samantha Stosur is the new U.S. Open champion after beating Serena Williams . The Australian proves too strong for favorite Williams , winning 6 - 2 6 - 3 in 45 minutes . Williams loses her cool after being disqualified for ` ` intentional hindrance '' It is Stosur 's first Grand Slam success in her second major tournament final .