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NOW: Defending champion Aryna Sabalenka beats Ella Sidel 6-0 6-1
Novak Djokovic beats Dino Prizmic 6-2 6-7 (5-7) 6-3 6-4 to reach second round
Defending champion Djokovic fights for four hours to beat qualifier in Melbourne
GB's Jodie Burrage beaten earlier on Australian Open main-draw debut
First day of Australian Open 2024 at Melbourne Park
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Tiafoe 6-3 7-6 (9-7) 2-6 6-3 Coric
Image source, Getty ImagesAmerican Frances Tiafoe has come through in four sets against world number 39 Borna Coric.
The 17th seed needed three hours and 27 minutes to beat the Croatian 6-3 7-6 (9-7) 2-6 6-3 to reach round two.
The 25-year-old's best result in Melbourne came in 2019 when he reached the quarterfinals, losing to some bloke called Rafael Nadal...
*Seidel 0-6 0-5 Sabalenka
Seidel had a little wobble earlier on where she looked a bit upset but seemed to rally in that game and found a couple of decent shots.
Sabalenka is not in the mood, though and she sends down her third ace of the match to wrap up the game.
She's one away from the second round.
Seidel 0-6 0-4 Sabalenka*
The crowd give a big cheer as Sabalenka fires a forehand into the net then Seidel follows up with a superb backhand winner across court.
Much better from the 18-year-old.
Seidel 0-6 0-4 Sabalenka*
Image source, EPASeidel shouts in frustration as Sabalenka sends her forehand whistling past.
She looks slightly upset as she steps back up to the baseline after skewing another return well wide.
This has been a tough one for the youngster but she is up against one of the world's best.
*Seidel 0-6 0-3 Sabalenka
Sabalenka in absolute cruise control as Seidel skews her return out of court after yet another powerful serve from the Belarusian.
That's nine games on the spin. Sabalenka is in touching distance of round two after just 36 minutes.
Seidel 0-6 0-2 Sabalenka*
Another straight forward break for Sabalenka. This is only going one way, now.
The question is, can Seidel prevent the double bagel?
*Seidel 0-6 0-1 Sabalenka
Image source, ReutersA slight improvement as Seidel manages to get Sabalenka to deuce but the second seed hammers an ace down to take the opening game of this second set.
Can Seidel try and get on the board in her service game?
Seidel 0-6 0-0 Sabalenka*
Not the start youngster Ella Seidel would've dreamt of but she plucks out a really good forehand effort to the back of the court and the crowd enjoyed that.
They love an underdog.
Seidel 0-6 Sabalenka
Well, that was a bit better from Seidel. She stays in the rally with the second seed but Sabalenka cleverly sends her scrambling across the baseline then nails the drop shot in the opposite direction.
This is a statement performance from the defending champ, she's not messing around.
*Seidel 0-5 Sabalenka
Just like that, Sabalenka has set point.
Seidel saves it, though. Can she get a game on the board to try and boost some confidence?
*Seidel 0-5 Sabalenka
Sabalenka drops a first point on her first serve when she sends a forehand long but wraps up the hold with an ace.
It's ruthless stuff from the defending champion and already, after just 17 minutes, 18-year-old Seidel will have to serve to stay in the set.
Seidel 0-4 Sabalenka*
Coco Vandeweghe
Former two-time Grand Slam semi-finalist on BBC Radio 5 Sports Extra
Image source, ReutersElla Seidel needs to get her footing and get her rhythm. She might see a slight opportunity eventually but she can't get dejected this early on.
She has to show a higher-ranked opponent, especially a defending champion, that you're here to fight, you're here to contend and you're not scared of the moment.
Seidel 0-4 Sabalenka*
After that absolutely mammoth four-hour match between Novak Djokovic and Dino Prizmic, you fear this one could be over fairly quickly.
Seidel 0-4 Sabalenka*
Seidel just can't get these big powerful shots of Sabalenka's under control, she struggles to take the zip off a big forehand then double faults to bring up three break points for Sabalenka.
The 18-year-old saves the first one but a brilliant passing shot from the Belarusian seals the double break.
*Seidel 0-3 Sabalenka
Ella Seidel said before the tournament she wanted to face a big name in the opening round of her maiden Grand Slam tournament.
It doesn't get much bigger than this one and she's struggling to make any inroads here.
*Seidel 0-3 Sabalenka
Well it's all looking very comfortable for second seed Aryna Sabalenka so far.
She consolidates that break of serve with a hold to love after just nine minutes of this match.
Seidel 0-2 Sabalenka*
Image source, Getty ImagesAs expected, Sabalenka gets out to a really strong start and takes the early break of serve.
*Seidel 0-1 Sabalenka
Sabalenka is one of the biggest hitters on the tour but Seidel has got some power behind her own shots and she shows some of that off to get to 30-30 but Sabalenka is all over any mistakes and earns herself a break point.
*Seidel 0-1 Sabalenka
Coco Vandeweghe
Former two-time Grand Slam semi-finalist on BBC Radio 5 Sports Extra
I think there'll be a little bit of nerves but there's so much confidence flowing through Aryna Sabalenka right now.
*Siedel 0-1 Sabalenka
Sabalenka going for that huge signature serve early on and it's an easy hold for the Belarusian.
Seidel looks a little nervous but she has nothing to lose here so she'll want to try and shake that and play some decent tennis.