The Australian Open always feels weird. First of all, it’s awkward to be talking about tennis in mid-January. But that’s summer in Australia. It’s also a little confusing that each day’s schedule starts at 7:00 the night before and the night sessions begin at 3 a.m. That’s what a 16-hour time difference can do for you, though.four women’s semifinalists are Wozniacki, Serena, Ivanovic and Sharapova