World number one Iga Swiatek said she had failed to play her “natural” game after her 18-match winning run came to a shuddering halt at the Australian Open on Saturday. 

The Polish top seed was beaten 6-3, 3-6, 4-6 in the third round by unseeded Czech teen Linda Noskova—ending her hopes of a first title in Melbourne. Just three of the top 10 women’s seeds remain in the draw in Melbourne at the end of the first week.