GB's Jamie Murray & American Bethanie Mattek-Sands lose 5-7 6-4 10-1 to Barbora Krejcikova & Nikola Mektic in mixed doubles final at Australian Open
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Sofia Kenin beats Garbine Muguruza 4-6 6-2 6-2 to win Australian Open women's singles title
American 14th seed Kenin was in her first Grand Slam final
Unseeded Spaniard Muguruza had been chasing her third major title
Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live
For me it's refreshing to see how young she is. Her love for the game and passion is coming across strongly. For me she is showing her emotions and wearing them on her sleeve.
She can't believe what she has done.
Muguruza 6-4 2-6 2-6 Kenin
Sofia Kenin will be presented the trophy by another American to have won here at Melbourne Park, Lindsay Davenport.
#bbctennis
Dr Ros Clarke: Wow, great job Sofia Kenin! Holding her nerve is what separated her from Mugaruza today.
Pat Cash
Former Wimbledon champion on BBC Radio 5 Live
She's just a tougher player who's played tougher games in tougher conditions. Garbine has been off and on in the past year.
What a phenomenal effort from Kenin.
Muguruza 6-4 2-6 2-6 Kenin
Garbine Muguruza served eight double faults in the final. Many of them coming at crucial times - twice on break points and then in that final game. But what a fantastic match - and tournament - from Sofia Kenin, so much fight in the young American.
The reward? A first Grand Slam title, something she said before the final she'd been dreaming about since the age of six...
Muguruza 6-4 2-6 2-6 Kenin
Double fault from Garbine Muguruza! On match point. Unbelievable.
Sofia Kenin, the 21-year-old American, is the Australian Open champion!
Image source, Getty Images*Muguruza 6-4 2-6 2-5 Kenin
That is ferocious from Sofia Kenin. Taking on the return with a sweeping forehand winner.
Match point once more...
*Muguruza 6-4 2-6 2-5 Kenin
Long from the American. Muguruza lets it go and watches thankfully as it drifts beyond the baseline. Back to deuce.
Jonathan Jurejko
BBC Sport at Melbourne Park
Sofia Kenin's dad Alex - her coach - can barely watch. He is leant forward on the front row of the box, elbows on ledge and head in his hands...
*Muguruza 6-4 2-6 2-5 Kenin
Big backhand winner from Sofia Kenin. Championship point!
She's on the verge here...
#bbctennis
Ayo Obit: Sofia Kenin, playing the match of her life in the final! That's what you like to see!
*Muguruza 6-4 2-6 2-5 Kenin
Another punchy serve from Garbine Muguruza. But then one of those double faults that have plagued her today - the Spaniard's sixth of the match - 40-30.
Make that seven. Deuce.
*Muguruza 6-4 2-6 2-5 Kenin
Sofia Kenin pounces on the slower second serve with a screaming winner down the line.
30-15.
*Muguruza 6-4 2-6 2-5 Kenin
Huge service game from Garbine Muguruza needed, she starts well... an eighth ace. 30-0.
Pat Cash
Former Wimbledon champion on BBC Radio 5 Live
The extra shot Kenin is making Muguruza play is making the difference. The Spaniard has just not been able to get her game rolling.
*Muguruza 6-4 2-6 2-5 Kenin
Sofia Kenin is one game away from becoming Australian Open champion and winning a first Grand Slam...
*Muguruza 6-4 2-6 2-5 Kenin
Muguruza takes the fight to Kenin, but somehow the American keeps the exchange alive. Muguruza has to scamper backwards but manages to draw Kenin wide and the 21-year-old rattles the net. 40-30.
But then a big serve when it's needed from the 14th seed - she holds.
Marion Bartoli
Former Wimbledon champion on BBC Radio 5 Live
We often use a sentence, 'you're as good as your second serve'. Her second serve is safe and sound. Her fighting spirit has been impeccable.
Muguruza 6-4 2-6 2-4 Kenin*
Sofa Kenin jabs a forehand into the tramlines at full stretch. 40-15.
Muguruza 6-4 2-6 2-4 Kenin*
Great rally, nonchalant slice from Sofia Kenin and it causes Garbine Muguruza all sorts of problems - the Spaniard gets it back but is passed in mid-court by a Kenin winner.
40-0.