Angelique Kerber

Angelique Kerber says she gave everything in her rollercoaster Australian Open semi-final loss to Simona Halep, and is happy to be back near her best after a lean spell. The German, who won the tournament in 2016, had a form slump last year that saw her plunge down the rankings from being World No. 1 at the start of 2017. But a run to the last four at the Australian Open convince her that she is again a force to be reckoned with.