Nick Kyrgios is quickly 40-0 up, before he goes for that between-the-legs shot again - and this time, Kyle Edmund whizzes a winner beyond him.

A cracking second serve, up at 137mph, ensures the Australian holds.

Image source, AFP

Serve and volley from Kyle Edmund, who has to lunge to make a cross-court backhand.

Down the line he goes and Kyrgios, wrong-footed, nets. A good hold for Edmund.

* denotes next server

What a time to find your first serve.

It's too good for Nick Kyrgios, and Edmund saves break point. Deuce.

In charges Kyle Edmund... and he slaps a forehand from the baseline into the net!

Break point, Kyrgios...

Nick Kyrgios nets a forehand at 15-40, before he darts to the net and whips a winner cross-court.

A fine bit of net play, including that ridiculously good hot dog shot, and Kyrgios wins the point!

Hello, deuce.

A bit of work for Kyle Edmund to do, then.

He'll serve to get the second set under way.

Shot!

A furious, flat forehand from Nick Kyrgios, and he will take the first set.

A fine backhand winner from Nick Kyrgios gets his nose back in front.

Some good defence from Edmund, but a forehand sits up nicely for Kyrgios, who jogs in and cracks the ball into the corner of the court.

Two set points to Kyrgios...

Crunching serve down the T from Kyle Edmund, and he jumps into the air to crack a winner past Nick Kyrgios.

A change of ends, and Kyrgios is annoyed with himself as he steps in and slices a backhand into the net.

Bosh. Ace from Nick Kyrgios.

And again!

A big serve out wide sets Kyle Edmund up nicely for a forehand winner.

Ooh, that's a miss from Edmund, though, trying to go cross-court and just hoicking the ball over the tramlines.

Serve and volley from Nick Kyrgios, and he gets the first point of the tie-break for his troubles.

Kyle Edmund nails a flat forehand winner for 30-0, before he passes an advancing Kyrgios with the backhand.

He nets as he attempts to return a Kyrgios backhand that lands smack on the baseline, but a big first serve ensures he hold.

After just 30 minutes, we're going to a tie-break.

An excellent catch, sir...

Another fast second serve from Nick Kyrgios, this time down the T, takes him to 40-0.

Edmund stretches to return a serve from out wide, but he nets. Edmund will serve to stay in this first set.

A quiet "shot!" from Nick Kyrgios as Edmund fizzes a backhand winner down the line.

Kyrgios fluffs his own forehand before Edmund challenges a wide call on a furious forehand winner. He's right to, as well - the ball has just kissed the line, and the Briton is 40-0 up.

An ace out wide ensures he holds.

Nick Kyrgios is passing the time between service games by calling over the ball kids for a chat.

The youngster has got a huge smile on her face as Kyrgios natters away, before he wanders back out.

Andrew Cotter
BBC commentator

135mph on the second serve is indecent! Kyrgios rattling though his own service games in about 90 seconds!

For all his sometimes negative body language, he says he wants to have fun so that's how he's going to play.

Image source, Reuters

What I like about both these players is that there's absolutely no hanging around.

Kyrgios whirls a 135mph second serve through Edmund's defences, before he rattles down another ace on his way to a speedy hold.

Nick Kyrgios pirouettes to meet Kyle Edmund's second serve, but the ball clunks off the top of the racquet and ends up in the crowd.

Edmund whips a forehand winner down the line for 30-0, before closing out the game with an ace.

Image source, Reuters