The players are out on court with Andy Murray sticking with his fluorescent green and dark coloured T-shirt and trainers combo. Bold.

Image source, BBC Sport

And what has Joao Sousa got to say? "I feel confident. I am playing good. He is one of the best for sure but it's going to be a good match. I have been working hard to increase my level."

Image source, EPA

"He fights hard," says Murray of Sousa. "He has a great attitude. He doesn't have one massive weapon, but he definitely gets the most out of his game. He's physically in very good shape. He lasts the long matches well. He'll make it tough for me."

Image source, EPA

The winner of this match will play 10th Grigor Dimitrov, who as you can see was pretty happy that he outlasted former finalist Marcos Baghdatis over five sets to reach the last 16 at the Australian Open.

The Bulgarian won 4-6 6-3 3-6 6-3 6-3 in three hours and 28 minutes.

Meanwhile, Canadian seventh seed Eugenie Bouchard beat Caroline Garcia 7-5 6-0 on Rod Laver Arena.

Image source, Getty Images

Who is Joao Sousa I hear you ask? He's a 25-year-old from Guimaraes, who speaks Portuguese, Spanish, Catalan, English, French and Italian and would have been a football player or a doctor if he hadn't pursued his love of tennis.

Murray knows him reasonably well, having beaten the Portuguese player in their three previous meetings. The most recent loss came at the Australian Open last year, when Murray dropped just eight games to win their second-round encounter.

Sousa, 25, had a decent 2014, reaching a career-high ranking of 35, following his runner-up finish at Bastad in July and earned his first Grand Slam seeding at the US Open.

He is bidding to become the first Portuguese player to reach the round of 16 at a Grand Slam. However, he has lost his last eight matches against Top 10 opposition.

Image source, AP

It's been smooth sailing for Murray so far in Melbourne, the Briton winning his opening two matches in straight sets for the loss of just 19 games.

Tougher tests lie in store, though, with Roger Federer and Rafael Nadal potential opponents on route to the final, where four-time champion Novak Djokovic could be waiting.

But for now, Murray has Joao Sousa (pictured), the world number 55, to contend with.

Piers Newbery
BBC Sport at Melbourne Park

"The thermometer says 25C but it feels considerably hotter on day five at Melbourne Park, and there's the usual warm wind whipping around the grounds. Murray will not be too worried about the conditions as a veteran of regular lung-bursting training blocks in Florida, and he's looked sharp so far after a winter spent working on his speed. Today marks a return to the Hisense Arena, the third show court and somewhere he has played most of his tennis in Melbourne over the last couple of years."

Image source, Reuters

Morning everybody and welcome to our live text commentary of Andy Murray's Australian Open third round clash with Joao Sousa of Portugal.

We're expecting the pair on court shortly, but there's still time to stick the kettle on and raid the cupboards for some late night/early morning snacks in preparation.

Image source, Reuters

Chatter about twirling, menstrual cycles and the rise of female coaches has dominated the news agenda in recent days - but there's only one story in town today and it involves Britain's lone representative in Melbourne, Andy Murray.