Digest

Top-spot tussle a slog for Svitolina

Elina Svitolina says she is "working her ass off" to win a first Grand Slam title and become world No 1 after reaching the Australian Open quarterfinals.

The Ukrainian fourth seed (pictured) is one of three players left in the draw - alongside Caroline Wozniacki and Karolina Pliskova - who could knock Simona Halep off the top of the rankings with a run to the final if other results go their way.