Hello and welcome to LIVE game-by-game coverage of the 2017 Australian Open women's final between Serena Williams and Venus Williams. The sisters are due on Rod Laver Arena at 8.30am GMT. This is the ninth time they have faced off in a Grand Slam final.

See the speech given by Serena Williams after she defeated sister Venus in the final of the Australian Open.

See the moment Serena Williams won her 23rd Grand Slam title

Serena Williams: "I'd like to congratulate Venus.... There's no way I'd have 23 without her... there's no way I'd have one without her..."

Venus Williams: "Congratulations Serena on No.23. I've been right there with you, some of them I have lost to you.... That's a little weird, but it's true!"

Impressive.

Serena is also the oldest Grand Slam winner in the Open era at the age of 35.

Take a bow, Serena Williams.

GAME, SET AND MATCH! - SERENA WILLIAMS 6-4 6-4 VENUS WILLIAMS. History for Serena! She surpasses Steffi Graf's Open-era record and clocks up Grand Slam title No.23 after just one hour and 23 minutes on court! Venus pushed her hard in the first set as the younger sister struggled to find her form to begin with. The 36-year-old No.13 seed was hoping for a maiden Aussie Open triumph and her first major in nine years but couldn't quite make enough impact to truly put her sibling under sustained pressure. Serena regains her world No.1 ranking and who would bet against her adding to her GS tally in the months ahead?

SERENA SERVING FOR THE TITLE: It's 15-30 and huge roars of hope from the crowd as Venus comes out on top in a pulsating 24-shot rally - the longest of the match. Serena steadies herself despite some obvious nerves to make 30-30. Venus drills a forehand into the net and it's championship point at 40-30....

SERENA WILLIAMS 6-4 5-4 VENUS WILLIAMS. Real fight from Venus. The crowd roar in encouragement as she holds to 15. Serena will now serve for the championship and a historic 23rd Open-era Grand Slam title. No pressure.

SERENA WILLIAMS 6-4 5-3 VENUS WILLIAMS. Serena comes up with the goods when she needs them most. Huge, huge serving sees her land some devastating first serves and a 10th ace of the contest to consolidate to love. Venus serving to stay alive in the match now.

BREAK! - SERENA WILLIAMS 6-4 4-3 VENUS WILLIAMS. Disappointment for Venus. She comes up with a big second serve to save BP after losing the longest rally of the match and then fends off a second. She looks to the heavens in anguish as Serena gets a third and is finally undone by a brutal crosscourt return winner. That could well be a key moment in the match. Slam title No.23 is tantalisingly close for the No.2 seed now.

SERENA WILLIAMS 6-4 3-3 VENUS WILLIAMS. In contrast to the start to the first set, we've had no breaks so far in the second as Serena cruises to a hold for the loss of just one point.

SERENA WILLIAMS 6-4 2-3 VENUS WILLIAMS. Venus giving it a real go and if Serena continues to have her off moments, she's got a chance. The older sister produces some supreme serving to hold to 15 and keep her nose in front.

SERENA WILLIAMS 6-4 2-2 VENUS WILLIAMS. Serena continues to play like Jekyll and Hyde as an imperious position turns into one of concern at 40-30. A weak shot lines it up for Venus to force deuce, but the No.13 seed slaps her attempt up the line into the net. All square.

SERENA WILLIAMS 6-4 1-2 VENUS WILLIAMS. So good from Venus! She looked in all sorts of trouble at 0-40 but summoned real spirit and fed upon her desire to keep her dream alive, to roar back and take the game from deuce. Huge cheers from the crowd. No doubt which sister the majority are behind.

Lots of respect between the sisters.

SERENA WILLIAMS 6-4 1-1 VENUS WILLIAMS. A fist pump from Serena as a big first serve sees her through to 30 after Venus had made a 40-0 procession more interesting.