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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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Djokovic 6-2 6-7 (5-7) 2-1 Prizmic*
I wouldn't be so sure just yet, Kirsty!
Novak Djokovic's expressions tell you he isn't enjoying himself out on Rod Laver Arena right now.
Dino Prizmic is playing free of any pressure or expectation, and successive unforced errors from the world number one hand him the break back in the third set.
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Kirsty Palmer: It’s sweet how Dino Prizmic is this year’s Enzo Couacaud
Frenchman Couacaud took a set off Djokovic at last year's Australian Open in the second round but ultimately lost 6-1 6-7 (5-7) 6-2 6-0.
*Djokovic 6-2 6-7 (5-7) 2-0 Prizmic
Goodness me. Djokovic misses with a backhand to present Prizmic with the chance to break back!
*Djokovic 6-2 6-7 (5-7) 2-0 Prizmic
However this match goes, Dino Prizmic has announced himself on the men's tour.
The teenager hits a sublime cross-court forehand on the run to beat Novak Djokovic for 15-15 as he chases a quick response.
Fritz 4-6 6-3 3-6 6-2 6-4 Diaz Acosta
Image source, ReutersAmerican Taylor Fritz has battled through five sets to reach the second round.
The 12th seed has beaten world number 93 Facundo Diaz Acosta in just over four hours on John Cain Arena.
Fritz, 26, had an indifferent season at the Grand Slams last year. He reached the US Open quarter-finals but suffered a third round and two second round defeats at the other three majors.
*Djokovic 6-2 6-7 (5-7) 2-0 Prizmic
Novak Djokovic certainly isn't firing on all cylinders here.
Is it the wrist? Or is it just first-round, early-season rustiness?
Regardless, the world number one can sense an opportunity here. A forehand winner brings him to 15-30 before a miss form Prizmic miss hands him a break point.
Double fault. Djokovic hits back.
Djokovic 6-2 6-7 (5-7) 1-0 Prizmic*
No sign of Dino Prizmic slowing down and settling for his one set here.
The Croat reaches an overhead to force deuce, but Djokovic digs his heels in and avoids any complications at the start of the third.
*Djokovic 6-2 6-7 (5-7) 0-0 Prizmic
Right then, can Dino Prizmic kick on or is Novak Djokovic going to be fired up following that unexpected setback?
Away we go in the third set, with the world number one serving first this time around.
Djokovic 6-2 6-7 (5-7) 0-0 Prizmic
Pat Cash
Former Wimbledon champion on BBC Radio 5 Sports Extra
Dino Prizmic is not missing anything. He's hitting the ball well and going for it.
Djokovic 6-2 6-7 (5-7) 0-0 Prizmic
Incredible!
A huge point - and it's Dino Prizmic, the teenage Grand Slam debutant, who holds his nerve in the tie-break to take a set against his childhood idol Novak Djokovic at the Australian Open.
The stuff of dreams for the Croat.
Djokovic 6-2 6-6 (5-6) Prizmic*
David Law
Commentator on BBC Radio 5 Sports Extra
Novak Djokovic really does look a little bit off right now.
Djokovic 6-2 6-6 (5-6) Prizmic*
Two down, two to go.
Novak Djokovic thrives in these big moments.
Another accurate serve, and Dino Prizmic will have to serve out the set. Massive point!
*Djokovic 6-2 6-6 (3-6) Prizmic
An absolutely ridiculous return from Novak Djokovic keeps the world number one in the set.
Three more set points to come.
Djokovic 6-2 6-6 (2-6) Prizmic*
Another miss from Novak Djokovic - and now Dino Prizmic will have FOUR set points!
*Djokovic 6-2 6-6 (2-4) Prizmic
Novak Djokovic fires back but he's left angry at someone in the crowd after a distraction causes him to miss a return.
And the luck is going in Prizmic's favour now! A sliced return clips the net cord and catches Djokovic out.
The 18-year-old leads the tie-break 4-2.
Djokovic 6-2 6-6 (1-2) Prizmic*
Image source, ReutersHello! The first mini-break goes to Dino Prizmic as Novak Djokovic is forced into the net.
Plenty of chatter among the crowd. The 18-year-old is delivering.
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Georgie Heath: Dino Prizmic - 18 years old, wearing short shorts and now showing the World number one & defending champion that he won’t be silenced easily.
*Djokovic 6-2 6-6 (0-1) Prizmic
Cool as you like, Dino Prizmic draws the error from Novak Djokovic to take the opening point of the tie-break.
Djokovic 6-2 6-6 (0-0) Prizmic*
We go to a tie-break!
Novak Djokovic responds with a love hold to stay alive in the second set. Huge points coming up.
*Djokovic 6-2 5-6 Prizmic
On we go!
Every credit to Dino Prizmic, he is playing the match of his life in by far the biggest match of his short career.
Not only does he edge back in front, but he does so by holding serve to love. Over to Mr Djokovic...