World number one Ashleigh Barty said it was a ‘little bit surreal’ after she won the Australian Open women’s title on Saturday night by defeating Danielle Collins in the final. The top-seed became the first home winner of the Australian Open since Chris O’Neil in Kooyong in 1978 after holding off maiden Grand Slam finalist Danielle Collins 6-3 7-6(2) in Melbourne. “It was a little bit surreal,” Barty said after the win. “I think I didn’t quite know what to do or what to feel, and I think just being able to let out a little bit of emotion, which is a little bit unusual for me. Being able to cel…