Postpublished at 12:00 Greenwich Mean Time 14 January 2019
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
Into the net goes Andy Murray's forehand.
Match point, Roberto Bautista Agut.
Britain's Andy Murray loses five-set epic to Roberto Bautista Agut at Australian Open
Spaniard Bautista Agut wins 6-4 6-4 6-7 (5-7) 6-7 (4-7) 6-2
Epic first-round match could be Murray's last because of hip injury
But he tells fans 'Maybe I'll see you again. I'll do everything possible to try'
Kyle Edmund loses 6-3 6-0 7-5 to Tomas Berdych, Dan Evans wins but Cameron Norrie goes out
Katie Boulter makes second round but Harriet Dart and Heather Watson are out
Federer, Nadal, Wozniacki and Kerber all win on day one
Amy Lofthouse
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
Into the net goes Andy Murray's forehand.
Match point, Roberto Bautista Agut.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
Murray lets out an irritated squawk as a Bautista Agut forehand takes a deflection off the net.
30-30.
David Law
BBC Radio 5 live tennis commentator at Melbourne Park
Murray can play tennis to a high level and roll back the years but he can't do it tomorrow or the next day. Let's enjoy this while we can.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
Ace!
30-15.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
A backhand winner from Andy Murray gets the crowd going again.
He clings on in yet another rally, somehow chasing down a drop shot, before Bautista Agut passes him at the net.
15-15.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
Andy Murray stops, raises his racquet and acknowledges the standing ovation.
There's some tears in his eyes, and in mum Judy's. If this is it, then it's been an almighty match to go out on.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
Huge applause for Andy Murray as he walks out to serve.
Mum Judy is on her feet, as is half the crowd, as the clock ticks over the four hour mark.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-5 Bautista Agut
It's Roberto Bautista Agut who is dictating the points now, and Murray blazes a forehand into the net for 40-0.
Murray can't return serve, and Bautista Agut is a game away.
Jonathan Jurejko
BBC Sport at Melbourne Park
You have to say, Roberto Bautista Agut deserves a huge dollop of credit - even from the staunchest Murray fans - if he wins this.
How he has managed to turn the tide in this set, in really tough circumstances, is incredible.
(Cue plenty hitting the dislike button below)
Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-4 Bautista Agut*
Andy Murray looks spent.
And yet still, he keeps on going.
Ian: Wish I had the determination and never say die attitude @andy_murray, external has and is showing in #AusOpen, external right now!!!!
Arttery: I don't care what happens next week, Andy Murray has totally won the Australian Open.
Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-4 Bautista Agut*
Into the net goes Andy Murray's backhand!
Roberto Bautista Agut breaks, and he's within sight of the second round.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-3 Bautista Agut
A loopy forehand from Andy Murray, and it drifts long.
He knew it was long before the call was made. Break point, Bautista Agut...
Gigi Salmon
Radio 5 live sports extra tennis commentator at Melbourne Park
Murray looks tired, in pain and uncomfortable.
I think we all are going to need a lie down after this.
*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-3 Bautista Agut
A couple of whippy forehands from Roberto Bautista Agut miss their mark, before Murray bunts a forehand of his own long.
Whoops. A double fault from Andy Murray takes us from 30-0 to 30-30.
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*Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-3 Bautista Agut
A very swift love hold from Roberto Bautista Agut, backing up his break.
Has Murray got anything left in the tank? This has been the most astonishing match.
Jonathan Jurejko
BBC Sport at Melbourne Park
Sport is brutal. From 30-0 ahead on Bautista Agut's serve to losing his own within the time it takes to cook a frozen microwave meal.
Murray 4-6 4-6 7-6 (7-5) 7-6 (7-4) 1-2 Bautista Agut*
I would like to tell you what Andy Murray is muttering to himself under his breath, but I don't think my boss would be too happy.
Here's Roberto Bautista Agut to serve.
Andrew Hunter: Can’t believe how tense it can be hitting refresh on the BBC live tennis feed. Come on Andy!!
Ashley Giles: Trying to contain my yelps in a very quiet office with my headphones on. Come on Andy!!!