Andujar finds the corner with a sweeping forehand, but then flicks one long to give Norrie the early advantage in the tie-break, he leads 2-1.

A forehand crosscourt sets up another forehand, this time down the line, and Norrie dives in to the lead in the second-set tiebreak, 1-0.

Kwon does some good hustling behind the baseline but that's wide on the backhand, and we're back on serve on Centre Court.

Norrie, showing great energy, manages to dig out a drop shot and then, running backwards, flick out a backhand winner. But that's the only point he wins in the 12th game so the second set will be decided via a tiebreak.

Oh!

Kwon thinks he has a drop shot all wrapped up before Djokovic comes scampering across the court, flicking the ball back over and watching his opponent net his attempted passing shot.

That gives Djokovic a sniff at 15-30 and another miss from Kwon, this time on the backhand, gives Djokovic a break back point.

Simon Reed
BBC Sport commentator at Wimbledon

There's the full variety of the Norrie switch from forehand to backhand, and in the end Andujar couldn't cope - but it was not faultless from Norrie, but enough to keep a lid on it.

Cameron Norrie, throwing in a nice mixture of forehand and backhand shots, drags an error from Pablo Andujar as he sweeps a forehand into the net.

Andujar has just served to save the second set and now has to do it again, 6-5.

A wonderful strike down the line from Djokovic flummoxes Kwon, who can only send his return floating over the baseline.

This is a little shaky on the serve from Djokovic, though, the defending champion double faulting for 30-30 before recovering with a tidy one-two punch.

Wallop. Ace. Djokovic holds.

Harry Poole
BBC Sport at Wimbledon

Well, well, well.

What a statement from Kwon Soon-woo to begin on Centre Court. An impressive break of serve, backed up with an equally impressive hold.

Novak Djokovic certainly knows he's got a huge fight on his hands in this opening set...

It's getting a bit blustery out on Court Two and a fine volley at the net from Andujar helps him to another comfortable hold, 5-5.

Djokovic did, of course, drop the first set in his opener last year against Jack Draper.

He then promptly rattled through the next three sets to claim a win and ultimately go on to win the title.

Still, Kwon gets himself to 40-0 and then holds as Djokovic sends a return long.

Image source, Getty Images

Full credit to Kwon - Djokovic has started maybe half a step slower than he would like and he has taken full advantage.

Can he back it up with a hold here?

(A reminder that you can watch this match over here)

Simon Reed
BBC Sport commentator at Wimbledon

All comfortable at the moment for Norrie, but Andujar's level has definitely gone up, as he serves to stay in this set.

No problem for Cameron Norrie in his latest game, with a hold to 15. We've had two breaks early in the second set, but no sign of any more recently.

The Briton will clinch the second set if he gets a break now though. Andujar serving to stay in the set.

Well then!

Kwon hits a glorious forehand into the corner of the court and the first break of the match is his!

Huh.

Djokovic misses an easy forhand and then watches a Kwon winner go flying past him to hand the South Korean two early break points.

Arvind Parmar
BBC Sport Commentator

That's a real let-off for Andujar - Norrie doesn't tend to miss many of those.

A lovely down-the-line winner from Andujar gives him game point and he then takes it, with Cameron Norrie putting too much on a cross-court flick from Andujar's drop shot.