91热爆

A place in the singles semi-finals is at stake for the remaining male and female players in the year鈥檚 first Grand Slam event in Melbourne. Kat Downes introduces the action.

There were several surprises at the quarter-final stage last year, with Rafael Nadal and the top two women鈥檚 seeds, Ashleigh Barty and Simona Halep, all beaten.