After researching on YouTube a 16-year-old opponent she'd never seen play before, Li Na will have to do it all over again for her next round at the Australian Open against another 16-year-old unknown to her. Li was nearly flawless Monday at a place she usually plays well, beating Ana Konjuh of Croatia 6-2, 6-0 in 61 minutes in the first round at Melbourne Park. ''Like zero, you know,'' Li said when asked what she knew about Konjuh's game ahead of the match. ''I tried to find her game in YouTube, and I watched a couple of games. More...