Melbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark poses with her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News
RMM17R2CMelbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark poses with her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News
Melbourne, Australia. 28th Jan, 2018. The 2018 Australian Open Women's Champion Caroline Wozniacki of Denmark speaks to the media at the Botanical Gardens in Melbourne, Australia. Sydney Low/Cal Sport Media/Alamy Live News
RMM17PRCMelbourne, Australia. 28th Jan, 2018. The 2018 Australian Open Women's Champion Caroline Wozniacki of Denmark speaks to the media at the Botanical Gardens in Melbourne, Australia. Sydney Low/Cal Sport Media/Alamy Live News
Melbourne, Australia. 28th January 2018. Bosniac tennis player Marin Cilic is in action during his finals match at the Australian Open vs Swiss tennis player Roger Federer on Jan 28, 2018 in Melbourne, Australia.- ©Yan Lerval/Alamy Live News
RMM180NXMelbourne, Australia. 28th January 2018. Bosniac tennis player Marin Cilic is in action during his finals match at the Australian Open vs Swiss tennis player Roger Federer on Jan 28, 2018 in Melbourne, Australia.- ©Yan Lerval/Alamy Live News
Melbourne, Australia. 28th January 2018. Bosniac tennis player Marin Cilic is in action during his 1st round match at the Australian Open vs Swiss tennis player Roger Federer on Jan 28, 2018 in Melbourne, Australia. Credit: YAN LERVAL/AFLO/Alamy Live News
RMM1822FMelbourne, Australia. 28th January 2018. Bosniac tennis player Marin Cilic is in action during his 1st round match at the Australian Open vs Swiss tennis player Roger Federer on Jan 28, 2018 in Melbourne, Australia. Credit: YAN LERVAL/AFLO/Alamy Live News
Melbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark kisses her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News
RMM17R2HMelbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark kisses her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News
Melbourne, Australia. 28th Jan, 2018. The 2018 Australian Open Women's Champion Caroline Wozniacki of Denmark speaks to the media at the Botanical Gardens in Melbourne, Australia. Sydney Low/Cal Sport Media/Alamy Live News
RMM17PTXMelbourne, Australia. 28th Jan, 2018. The 2018 Australian Open Women's Champion Caroline Wozniacki of Denmark speaks to the media at the Botanical Gardens in Melbourne, Australia. Sydney Low/Cal Sport Media/Alamy Live News
Melbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his finals match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia.- ©Yan Lerval/Alamy Live News
RMM180NTMelbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his finals match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia.- ©Yan Lerval/Alamy Live News
Melbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his 1st round match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia. Credit: YAN LERVAL/AFLO/Alamy Live News
RMM18212Melbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his 1st round match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia. Credit: YAN LERVAL/AFLO/Alamy Live News
Melbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark poses with her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News
RMM17R2BMelbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark poses with her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News
Melbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his finals match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia.- ©Yan Lerval/Alamy Live News
RMM180P5Melbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his finals match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia.- ©Yan Lerval/Alamy Live News
Melbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his 1st round match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia. Credit: YAN LERVAL/AFLO/Alamy Live News
RMM18215Melbourne, Australia. 28th January 2018. Swiss tennis player Roger Federer is in action during his 1st round match at the Australian Open vs Bosniac tennis player Marin Cilic on Jan 28, 2018 in Melbourne, Australia. Credit: YAN LERVAL/AFLO/Alamy Live News
Melbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark kisses her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News
RMM17R2DMelbourne, Australia. 28th Jan, 2018. Caroline Wozniacki of Denmark kisses her Australian Open trophy, the Daphne Akhurst Memorial Cup in the Royal Botanical Gardens in Melbourne, Australia, Jan. 28, 2018. Credit: Bai Xuefei/Xinhua/Alamy Live News