Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: WTA stars Petra Kvitova and Simona Halep at Darling Harbour to board the super yacht 'Cooroboree' fo a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Samantha Stosur chatting to a TV crew on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Samantha Stosur chatting to a TV crew on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Ashleigh Barty chatting to a Channel Nine TV crew on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

AUSTRALIA - JANUARY 06: Ashleigh Barty during a media opportunity for the 2019 Sydney International on the super yacht 'Corroboree' out on Sydney Harbour . (Photo by Rob Keating/Robicia Tennis)

AUSTRALIA - JANUARY 06: Ashleigh Barty during a media opportunity for the 2019 Sydney International on the super yacht 'Corroboree' out on Sydney Harbour . (Photo by Rob Keating/Robicia Tennis)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Samantha Stosur and Ashleigh Barty chatting to a TV crews on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House is in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Ashleigh Barty chatting to a TV crew on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Ashleigh Barty wearing a Fila hoody on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Ajla Tomljanovic on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australia's Ajla Tomljanovic on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Australia's Ajla Tomljanovic on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Australia's Ajla Tomljanovic on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Australian tennis player Ashleigh Barty chats with a film crew on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Two-time Wimbledon champion Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Two-time Wimbledon champion Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. The Sydney Opera House and Sydney Harbour Bridge are in the background. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: Two-time Wimbledon champion Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Two-time Wimbledon champion Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Two-time Wimbledon champion Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Two-time Wimbledon champion Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)r

Sydney International Players Cruise

Sydney, Australia - 6 January 2018: Two-time Wimbledon champion Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)r

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: WTA players and media on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: World no. 1 Simona Halep from Romania takes a photo of the Sydney skyline (L-R) Ashleigh Barty, Simona Halep and Petra Kvitova on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)

Sydney International WTA Players Cruise

Sydney, Australia - 6 January 2018: WTA stars (L-R) Ajla Tomljanovic, Daria Gavrilova, Ashleigh Barty, Simona Halep, Petra Kvitova, Sloane Stephens, Samantha Stosur on-board the super yacht 'Cooroboree' during a media opportunity for the Sydney International tennis. (Photo by Rob Keating/robiciatennis.com)