Andy Murray was ready to quit Australian Open after father-in-law health scare

Andy Murray says he would have pulled out of the Australian Open had his father-in-law's health deteriorated following his collapse at Rod Laver Arena.

Nigel Sears, who coaches Ana Ivanovic, needed medical treatment before being stretchered out of the stadium and taken to hospital midway through Ivanovic's third-round match with Madison Keys on Saturday.

Murray, who was playing his own third-round match on the adjacent Margaret Court Arena, was oblivious to Sears' collapse until afterwards and rushed straight to hospital following his victory.

The British No 1, who has previously stated he will quit the tournament early if his pregnant wife Kim goes into labour, said after his fourth-round win over Bernard Tomic the same would have applied had her father's condition worsened.

"Obviously it depended on Nigel's health," he said. "If the news was not positive, then, no, there was absolutely no chance I would have kept playing.

"It was a tough few days. Certainly wasn't straightforward. I'm just glad that he's on his way home now and can be back with his family."

Murray admitted he felt drained during the match on Monday, which he won 6-4 6-4 7-6 to set up a last eight encounter with David Ferrer.

"Certainly I was trying to just concentrate on the match when I was out there, but it's been a hard, hard few days.

"I just can't believe something like that happened. It's very, very scary."

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