Top seed and defending champion Angelique Kerber is off to the perfect start. A straightforward service game to love and the first set is wrapped up in a fraction over 25 minutes..

If you know your colloquial Spanish then you'll know Facundo Bagnis ain't happy. Some choice words. The Argentine has an eye on the break as he moves into a 30-0 lead, but loses his advantage - and his cool - as Evans pins him back on the baseline.

Bagnis isn't finished yet though, seeing off a game point, then taking the advantage in deuce with a mammoth cross-court forehand which whizzes past Evo's eyeline.

But that's as good as it gets. Evans reasserts himself to move within two games of victory.

Lovely from Tsurenko, getting right to the ball and slashing a forehand past Kerber. She can't keep a consistency, though, as another poorly timed forehand dropping well wide.

Dan Evans has never won in the main draw at Melbourne Park. If he doesn't change that now then I'll commentate on Facundo Bagnis's second-round match in my pants. And I'm no Gary Lineker.

Bagnis finally gets his side of the scoreboard moving in this third set, but Evo pushes him all the way before the Argentine finds his first serve.

A irritated waft of the arm from Tsurenko as she hits the net, and she channels her frustration into a powerful forehand that earns the crowd's applause. Kerber's finding her rhythm, slamming in a serve that Tsurenko can't return.

Kerber puts Tsurenko on the back foot before a stonking forehand slam beats Kerber's outstretched arm. However Tsurenko makes a couple of errors, her face showing her annoyance as Kerber snaffles the second break point. 

Dan Evans might as well have a pair of wings. He's flying. The Brit moves into double figures on the ace count on the way to another easy hold. Facundo Bagnis barely stuck strings on ball in that game.

Evo two sets and a break up. Round two beckons...

Dan Evans has his Argentine opponent on the ropes. Time for a left, right, goodnight? Great change of direction from the Brit tees up a third break point of the game, but Bagnis clambers back into the ring with a crunching forehand that leaves Evo wafting.

But he is not denied for long. A wonderful forehand from the baseline leaves Bagnis bamboozled on break point numero quatro - and that's the game.

Kerber looks more comfortable serving and a glorious shot down the line puts her in charge. She forces a weak backhand out of Tsurenko before coming up to the net to hold to love. She's being watched in the Rod Laver arena by the man himself.

Sam Smith
Former British number one on BBC Radio 5 live sports extra

Bagnis' head is in the washing machine - he's all over the place. Evans has to make it count. The hardest thing to keep going in a five-set match is momentum. Evans has got to keep on the front foot and getting to the net.

A grunt of annoyance from Kerber as she parries a return into the net. Tsurenko has the power over her so far. Her opponent looks unruffled as she slams a forehand past Kerber's reach to hold to love.

Right, then. Dan Evans to kick off this third - and what could be final - set. The British number three has few problems, Facundo Bagnis lumping a weak double-handed backhand into the tape on game point. Head's gone.

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World number one Angelique Kerber is in action against Ukraine's Lesia Tsurenko. It was a slightly shaky start for Kerber and Tsurenko is pushing her every step of the way. Kerber's managed to hold, but she's got an aggressive opponent on her hands.

Gigi Salmon
BBC Radio 5 live sports extra commentator

I'd love to know what Dan Evans is like at home. Does he sit on the sofa as quiet as a mouse or as fidgety as he is on the court? He's a lovely lad.

Easy peasy. Facundo Bagnis is serving to stay in this second set - and he crumbles quicker than an overcooked apple pie. Dan Evans pounces on his opponent's serve, setting up a couple of break points before a crunching forehand seals a two-set lead.

Nick Kyrgios is sticking to that old adage that a quick game is a good game. It's taken him just 19 minutes to win the first set against Portugal's Gastao Elias. He leads 6-1, thanks to some outrageous volleys.

Is that a spade in Dan Evans' hand? He's just dug himself out of a hole. A crunching forehand from Facundo tees up a break point - his first of the second set - but Evo keeps his cool to rattle off three straight points. He seals a hard-fought hold with a sumptuous backhand from the baseline. A thing of beauty.

A couple of holds traded between Dan Evans and Facundo Bagnis, the latter finally finding his feet in the second set. But could it be too late?

Evans's service game has been decent so far - coughing up just the one break point.

Image source, AFP

Earlier today on the Rod Laver Arena, world number four Simona Halep became the first seed to be knocked out of the competition when she lost 6-3 6-1 to American Shelby Rogers.

Rogers' compatriot Venus Williams then followed that up with a 7-6 (7-5) 7-5 victory against Ukraine's Kateryna Kozlova.

Elsewhere, seventh-seeded Garbine Muguruza saved a set point in the first set and needed a medical timeout before advancing with a 7-5, 6-4 win over Marina Erakovic.

 Australian teenager Destanee Aiava became the first player born in this millennium to play a main draw match at a major. She lost 6-3, 7-6 (7-4) to German qualifier Mona Barthel.

The turnaround in the Rod Laver Arena is complete - we're all set for the night session. We just need a couple of players. Here they are!

Out strolls Ukraine's Lesia Tsurenko, closely followed by the reigning women's singles champion. It's Angelique Kerber!

A huge ovation for last year's winner, who shows little emotion as she wanders out in a not-quite full Laver.