Iga Swiatek’s No. 1 ranking, four Grand Slam titles and 18-match winning streak were no help against big-hitting teen Linda Noskova at the Australian Open. After crouching at the baseline and covering her face when she closed out the 3-6, 6-3, 6-4 third-round victory over Swiatek on Saturday, the 50th-ranked Noskova said: “I didn't really think that it would end up like this.” Noskova, after all, is making her debut at the year's first Grand Slam tournament and had only two match wins at all majors until a week ago.