Iga Świątek's run hasn't been without controversy, including one call in her quarter-final win over Emma Navarro that left the tennis world scratching their heads.

Emma Navarro called for a change in the rules after a controversial moment during her Australian Open quarter-final loss to Iga Swiatek. The second seed continued her romp through the draw with a 6-1 6-2 victory to set up a meeting with Madison Keys.