There's one for Kyrgios, as Tsonga nets his return of serve...

Oh, but he can't get to that! The gentlest of volleys from Tsonga, and Kyrgios, desperate, running forward, can't get a touch of racquet on it.

All square, but not for long, as Tsonga overworks a return.

Over to you, Nick...

Good play, this, but it's Tsonga who comes off the worst as an attempted drop shot lands at the foot of the net.

A change of ends, Tsonga fuming with himself - and he wins the point.

A big chance for Kyrgios, as Tsonga comes up to the net and leaves plenty of open space behind him - but the Australian nets! He's, er, not best pleased.

He'll snaffle a point, though.

"Come on!" urges Kyrgios as Tsonga nets from deep behind the baseline.

Big first serve, and Tsonga can't find his footing. Into the lead goes Kyrgios.

This is how their last match in Marseille began - Tsonga won the first set tie-break, and then the match.

He gets the first point of this one as he darts forward and cracks a forehand over.

Nick Kyrgios' brother is wearing a shirt that says "quiet, please" which seems fitting after the antics of the other night.

A superb second serve, quick and firey, wrongfoots Tsonga, before Kyrgios cracks a forehand winner past him.

A backhand is called out from Tsonga, but he's decided he wants to have a look at it - and it's out! Hello, tie-break.

Image source, Getty Images

Will Smith is soaking up the action, while sporting a natty neckerchief...

Kyrgios encourages the crowd to get behind him and they respond, before Tsonga double faults to get his opponent on the board.

Tsonga responds by pushing Kyrgios wide, forcing his opponent to charge around behind the baseline, and a loose forehand from his opponents rounds off the game.

Kyrgios pushes his serve out wide, Tsonga tumbles and gets racquet on it, and Kyrgios stands and beckons the ball towards him, willing it to bounce out. Advantage Kyrgios.

A forehand winner ensures the Australian holds.

Another ace? Why not, says Kyrgios, and he thuds his serve past Tsonga to get the advantage.

Tsonga draws him into a rally and then spears the ball onto the line, and Kyrgios skews his return into the crowd.

Back to deuce we go.

Tsonga gets himself a brief lead over Kyrgios, before the Australian brings things level with his sixth ace of the match.

And that'll be his seventh for 40-30. Ooh, that's not a good backhand from Kyrgios, and we're going to deuce.

Rafael Nadal signs for the first set after just 22 minutes against Bosnian Damir Dzumhur.

And then lobs his opponent a break in the first game of the second set by way of compensation.

Only one of the world number one's 75 career titles arrived here - back in 2009.

Argentine Diego Schartzman is the next in line for the Spanish steamroller, presuming this continues in the same vein.

Kyrgios admonishes himself with a "get to it!" as a little jabby backhand doesn't clear the net.

Tsonga makes a bit of a mess of a little pick up from a Kyrgios slice but that's fine work, darting forward to thump a forehand beyond the swish of Kyrgios' racquet.

Here's the Nick Kyrgios steamroller.

Aces and big serves combine to put him 40-0 up before a pinpoint backhand, swiped down the line, secures a hold.

There is a dissection taking place out on the Margaret Court Arena.

Top seed Rafael Nadal has rattled through to 5-0 in the opening set against Damir Dzumhur.

A challenge from Tsonga as his first serve is called out and it is out by the tiniest of margins. Tsonga look suitably miffed.

Kyrgios strikes another blow with an elegant backhan that has Tsonga stretching and spooning out wide. Two aces will tidy things up for Tsonga.

* denotes next server

Kyrgios, back curved shoulders hunched, gets drawn into a rally with Tsonga, but he makes a meal of a volley and it's 15-30 against him.

And again! A little push hands Tsonga two break points. The first is saved with a fine slap past his opponent, but a net cord goes against Kyrgios. We're all square.

Naomi Broady
British number three on BBC Radio at Melbourne Park

Nick is obviously well up for it. You don't see him get the fist pump out that early usually. Jo Wilfried Tsonga is not looking too comfortable out there. He has not taken a point off the Kyrgios serve and the Australian has landed with all eight of his first serves so far.

You can listen to the radio commentary via the link at the top of this page.

In comes Nick Kyrgios, darting inside the court and watching a Tsonga serve go whizzing right past him.

Ace down the T, and Tsonga holds. Five games in ten minutes - there'll be no messing around.