Melbourne, Australia. 31st Jan, 2015. Maria Sharapova of Russia reacts during her women's singles final match against Serena Williams of the United States at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit:  Bai Xue/Xinhua/Alamy Live News
RMEFC86PMelbourne, Australia. 31st Jan, 2015. Maria Sharapova of Russia reacts during her women's singles final match against Serena Williams of the United States at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit: Bai Xue/Xinhua/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit:  csm/Alamy Live News
RMEFC7TKMelbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit: csm/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. Maria Sharapova of Russia reacts during her women's singles final match against Serena Williams of the United States at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit:  Bai Xue/Xinhua/Alamy Live News
RMEFC5TGMelbourne, Australia. 31st Jan, 2015. Maria Sharapova of Russia reacts during her women's singles final match against Serena Williams of the United States at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit: Bai Xue/Xinhua/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit:  csm/Alamy Live News
RMEFC7TNMelbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit: csm/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit:  Bai Xue/Xinhua/Alamy Live News
RMEFC5THMelbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit: Bai Xue/Xinhua/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit:  csm/Alamy Live News
RMEFC9EDMelbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit: csm/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit:  Bai Xue/Xinhua/Alamy Live News
RMEFC86NMelbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit: Bai Xue/Xinhua/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit:  csm/Alamy Live News
RMEFC9EAMelbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit: csm/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit:  Bai Xue/Xinhua/Alamy Live News
RMEFC5TFMelbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit: Bai Xue/Xinhua/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit:  csm/Alamy Live News
RMEFC9EEMelbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit: csm/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit:  Bai Xue/Xinhua/Alamy Live News
RMEFC86KMelbourne, Australia. 31st Jan, 2015. Serena Williams of the United States returns the ball during her women's singles final match against Maria Sharapova of Russia at the Australian Open tennis championship in Melbourne, Australia, Jan. 31, 2015. Credit: Bai Xue/Xinhua/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit:  csm/Alamy Live News
RMEFC9E9Melbourne, Australia. 31st Jan, 2015. 1st seed Serena Williams (USA) celebrates winning the Women's Final match against 2nd seed Maria Sharapova (RUS) on day thirteen of the 2015 Australian Open grand slam tennis tournament at Melbourne Park in Melbourne, Australia. Sydney Low/Cal Sport Media. Williams won 6-3 7-6(5) Credit: csm/Alamy Live News
Melbourne, Australia. 31st Jan, 2015. Maria Sharapova of Russia reacts during the Women's Singles final match against Serena Williams of the United States at the 2015 Australian Open tennis tournament at Melbourne Park in Melbourne, Australia, Jan. 31, 2015. Credit:  Bai Xue/Xinhua/Alamy Live News
RMEFC5RRMelbourne, Australia. 31st Jan, 2015. Maria Sharapova of Russia reacts during the Women's Singles final match against Serena Williams of the United States at the 2015 Australian Open tennis tournament at Melbourne Park in Melbourne, Australia, Jan. 31, 2015. Credit: Bai Xue/Xinhua/Alamy Live News