With Andy Murray opening up on the extent of his long-term hip injury last week, it was an emotionally charged match even before the first serve was taken. While it didn’t produce a fairy-tale ending in a 6-4, 6-4, 6-7 (5), 6-7 (4), 6-1 loss, Murray stayed true to himself in fitting fashion. 

An ultimate fighter throughout his career, the Scot demonstrated the qualities that not only led to him winning three Grand Slam titles, two Olympic titles and a Davis Cup, but also endeared him to tennis fans around the world.  

Despite losing the opening two sets and his limp becoming more pronounced with every passing point, in typical fashion, Murray managed to muster up willpower to fight back. He won tie-breaks to take the third and fourth sets, while his roars, drenched in emotion, ensured the arena in Melbourne rose to fever pitch. 

He fought to the bitter end, but the wave of euphoria and momentum weren't enough to carry Murray to victory as Bautista Agut clinched the fifth set, securing his place in the second round.

After the game, Murray stopped short of calling time on his career. 

"Tonight was incredible. Thank you so, so much for everyone that came out tonight. I've honestly loved playing her over the years. It’s a great place to play tennis. If it is my last match, it was a great place to do it. I didn't have enough tonight so congratulations to Roberto.

"I don't really have anything else to say. I just want to say thank you to everyone who has supported me and my career. You may see me again. I'm going to give it my best shot. But if I am ever going to play here again, I'm going to need major surgery and there's no guarantee I'll be able to play again. I'm going to give it my best shot though. So thank you all."

Kerber cruises into second round

Second-seed Angelique Kerber cruised into the Australian Open second round beating Polona Hercog 6-2, 6-2, a straight sets win that underlined her title credentials.

The 2016 champion needed just 72 minutes to beat the Slovenian and talked about being in the groove after getting off on the right foot down under.

Read more: What will 2019 bring for Angelique Kerber?

"I've played a lot of matches here already in Australia ... I have my rhythm," said Kerber, who played lead-up events in both Perth and Sydney.

Kerber was rarely challenged, and stepped up her relentless, grinding style on the handful of occasions she faced break points to move into the next round without losing any service games.

The German is to play Brazilian qualifier Beatriz Haddad Maia in the second round.

Petkovic amongst German casualties

There was a worrying moment later in the day when Andrea Petkovic collapsed on court during her opening match against Romania's Irina-Camelia Begu. 

The 31-year-old, who was trailing in the second set after taking the first in a tie-break, eventually got back to her feet after receiving medical treatment and went on to play another point before being forced to retire.

Petkovic was wasn’t the only big name to fall short on a bad day at the office for German players as 14th seed Julia Goerges lost in three sets to American Danielle Rose Collins.

Read more: Zverev looking to make leap past big three

In the men’s draw Peter Gojowczyk, Rudolf Molleker and Jan-Lennard Struff all failed to reach the second round as each suffered defeats in four sets.

Other notable results:

Men’s draw: First round

Rafael Nadal (2), Spain, def. James Duckworth, Australia, 6-4, 6-3, 7-5.

Reilly Opelka, United States, def. John Isner (9), United States, 7-6 (4), 7-6 (6), 6-7 (4), 7-6 (5).

Kevin Anderson (5), South Africa, def. Adrian Mannarino, France, 6-3, 5-7, 6-2, 6-1.

Women’s draw: First round

Katie Boulter, Britain, def. Ekaterina Makarova, Russia, 6-0, 4-6, 7-6 (6)

Maria Sharapova (30), Russia, def. Harriet Dart, Britain, 6-0, 6-0.

Sloane Stephens (5), United States, def. Taylor Townsend, United States, 6-4, 6-2.

Kiki Bertens (9), Netherlands, def. Alison Riske, United States, 6-3, 6-3.

jt/pfd (Reuters, AP)