Picking a grand slam winner is never an easy task but due to the competitiveness on the WTA Tour, the Australian Open really is wide open.
Over the past two years there have been eight different winners of the major women's tournaments, starting with Serena Williams' 23rd grand slam title in 2017 and finishing with Naomi Osaka's triumph at Flushing Meadows.
All of the former champions will be in action in Melbourne next week – injury permitting – and are likely to fill the top sections of the betting market.
However, if history has taught us anything it is to expect the unexpected at grand slams, so seeing a ninth different champion should not be discounted.
So who could realistically challenge the likes of Serena, Simona Halep, Caroline Wozniacki and Angelique Kerber for the title at Melbourne Park? We take a look at five contenders.
Seven days until the best in the world give it everything they've got pic.twitter.com/A0aJ0JRBMo— #AusOpen (@AustralianOpen) January 6, 2019
Svitolina came into 2019 on the back of the biggest win of her career at the WTA Finals, a fitting end to a year that saw her finish inside the world's top five for the first time.
The 24-year-old has picked up valuable "big-match experience" in the last two years, winning all four of her Premier 5 finals – including the Internationali d'Italia against Halep in May.
Her successes in Singapore and Rome were among four titles in 2018 – she also won in Brisbane and Dubai, while she secured her best Melbourne finish as she reached the last eight.
She suffered a surprise defeat at the Brisbane International earlier this month as she was beaten by Aliaksandra Sasnovich, but Svitolina remains a strong bet to go far over the next fortnight.
When the pre season is FINALY OVER .. and you are all packed and ready to go Byeeeeee pic.twitter.com/0SfffKUBSF— Elina Svitolina (@ElinaSvitolina) December 26, 2018
Victory at the Brisbane International gave Pliskova a superb start to 2019 and she will hope it can continue in Melbourne – where she has been a quarter-finalist in the last two years.
Pliskova has been in the world's top-10 for the past three seasons but breaking through to win a grand slam remains something she has yet to do.
Her qualities from the baseline undoubtedly make her an Australian Open contender, but she must find some consistency if she is to become the ninth different champion in a row.
Since reaching the final of the 2017 US Open final, Keys has been a consistent grand slam performer but taking that final step to be crowned a champion continues to elude her.
Keys is one of a number of promising American players on the WTA Tour at the moment, joining the likes of Sloane Stephens, Danielle Collins and Coco Vandeweghe in stepping out of Serena Williams' shadow.
Stephens denied Keys her first grand slam title at Flushing Meadows, though Melbourne has also been a happy hunting ground, reaching the semis in 2015 and the last-eight 12 months ago.
Injuries hampered her progress in 2018 but expect her to be knocking on the door in the latter stages of the competition.
While the other names on this list have yet to taste grand slam success, Kvitova already has two Wimbledon crowns.
But her successes came before the horrific hand injuries she suffered in December 2016 trying to fend off robbers in her flat.
Having returned to the Tour, even being considered as a grand slam contender is a huge achievement, but Kvitova's inclusion is not a sympathy one.
While results may not have gone her way all the time, Kvitova still shows moments of quality that other players can only dream of and if she can find her rhythm a deep run in Melbourne should not be ruled out.
Sabalenka enjoyed a breakthrough year in 2018, the 20-year-old surging up the rankings after 43 wins on the WTA Tour.
Her performance in Wuhan was a particular highlight as she raised her level to see off Carla Suarez Navarro, Dominika Cibulkova, Ashleigh Barty and Svitolina on her way to the title.
Wins over Garbine Muguruza and Caroline Garcia followed in Beijing, and Sabalenka has already got her hands on some silverware this year in Shenzhen.
She may have lost to Kvitova in Sydney but it was a battling display, and with her power and aggression the Belarusian could be a dark horse in Melbourne.
|Wozniacki enjoyed status as defending champion in Melbourne|
|Solskjaer backs Mourinho to return to football´s big time|
|Murray to miss Open 13 Marseille|
|Solskjaer´s United turnaround no easy task, says Hughton|
|The big Friday Premier League quiz|
|How James Harden´s 2018-19 numbers compare to his MVP campaign|
|It´s insane! - Tsitsipas excited to face ´legend´ Federer|
|Sharapova ends Wozniacki title defence|
|American teen Anisimova sends records tumbling at Aus Open|
|Lakers survive Ball´s gaffe to beat Thunder in OT|
|Federer expects ´athletic´ and ´attacking´ Tsitsipas clash|
|Alcacer is fit and available – Favre|
|Fantastic Federer breezes past Fritz|
|Pogba happy with Man United approach under Solskjaer|
|Mickelson leads Desert Classic, ties career-low with 12-under 60|
|Warriors´ Durant on Curry: He´s a once-in-a-generation, once-in-a-lifetime talent|
|Patriots owner says Brady is greatest player, not just quarterback, of all time|
|Inglis to retire from representative duty this year, NRL in 2020|
|Is Beal better without Wall? Wizards star says it´s ´absolutely nonsense´|
|Rockets C Capela undergoes thumb surgery, expected back after All-Star break|
|This Week in U.S. Sports: Irving apologises, Machado´s agent isn´t happy|
|Knicks in woeful shape, but 2019 could still be bright in New York|
|Valverde not worried about Levante´s Copa appeal|
|Nowell an option for England at flanker, reveals Jones|
|Pellegrini: Arnautovic available for the right price|
|Knicks throw away 19-point lead and lose on last-second goaltending call|
|Tebow invited back to Mets´ major league spring training|
|Canelo and Jacobs agree unification fight|
|Barcelona 3 Levante 0 (4-2 agg): Dembele at the double as Barca advance|
|Levante to lodge complaint over Barcelona Copa selection|
|Kanter´s London absence ´very unfortunate´, says NBA commissioner|
|NBA could swap London for Paris in 2020|
|Spurs coach Popovich uncertain if he will return next season|
|Pistons´ Griffin fined for verbal abuse of official|
|Everton do not have financial conditions to enter transfer market - Silva|
|Andy Cole joins Sol Campbell´s coaching staff at Macclesfield|
|Atletico confirm Saul has thigh injury|
|Wood replaces injured Stone in England squad|
|Lebanon 4 North Korea 1: Disciplinary record cruelly denies Radulovic´s men|
|Saudi Arabia 0 Qatar 2: In-form Ali bags brace as Qatar top group|
|Robertson signs new Liverpool deal|
|Vunipola backs Farrell to thrive in solo leadership role|
|People don´t know what´s going on behind the scenes - Mourinho defends United stint|
|Indefatigable Muguruza knocks out Konta at 3:12am|
|Serena coasts, difficulties for Halep and Muguruza´s marathon|
|Lowry retains Abu Dhabi lead|
|Djokovic battles past Tsonga, young guns flourish|
|Louisville airport to be renamed in Muhammad Ali´s honour|
|Emery not thinking about Ozil speculation|
|Sri Lanka hopeful over Kusal Mendis finger injury|
|Oman 3 Turkmenistan 1: Last-gasp Al-Musallami guarantees progression|
|Emery wants Cech to end career ´in a good moment´|
|Japan 2 Uzbekistan 1: Shiotani stunner seals comeback and top spot|
|Calhanoglu deal ´financially impossible´ for Leipzig|
|Not seen at Aus Open since Nadal, Djokovic and Murray in 2009 – ´Next Gen´ make move|
|Martial: Solskjaer lets me express myself|
|Djokovic sees off Tsonga to reach third round|
|Returning Cousins calls Warriors ´the most hated team in sports´|
|Halep injury ´nothing dangerous´|
|Warner picks up elbow injury in Bangladesh|
|Mkhitaryan returning to Arsenal training next week|
|Leeds United pounce for Real Madrid goalkeeper Casilla|
|Watson lights up Gabba before power cut forces abandonment|
|Superb Serena blows Bouchard away|
|Tevez, Hulk, Oscar, Lavezzi - how the CSL stars Dembele is following to China fared|
|Thiem retires from Australian Open|
|Osaka ´not telling´ when it comes to injury niggle|
|Fabinho enjoying Klopp´s management style|
|Halep battles past Kenin in Melbourne|
|Hartley to miss England´s Six Nations opener|