who wins the 2017 australian open women's single title
2017 Australian Open – Women's Singles Serena Williams won the title, her 7th Australian title overall and first Australian Open where she did not lose a set during the tournament. She also regained the No. 1 ranking, defeating her sister Venus Williams in the final, 6–4, 6–4. This marks the first time the Williams sisters met in a Grand Slam final since the 2009 Wimbledon Championships and the first time they met in the Australian Open final since 2003.[1]