Sania Mirza and Ivan Dodig, seeded second in the tournament, overcame a slow start to knock out the local pairing with the match going into super tie-break.

Leander Paes and Martina Hingis were beaten 3-6 2-6 by the local pair of Sam Groth and Samantha Stosur in a quarterfinal match that lasted 55 minutes.

Andy Murray, whose wife Kim Sears is pregnant, was playing on the neighbouring Margaret Court Arena unaware of the emergency, and he rushed to see his father-in-law in hospital after coming off court.

Australian Samuel Groth, the world number 340, has broken the record for the fastest serve in tennis with a serve of 263km/h during a Challenger Tournament in Busan, South Korea, the ATP announced on Saturday.